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Code Issues Releases Wiki Activity

[esp32_ble_server] Create custom services, characteristics and descriptors (#7009)

Browse Source 
Co-authored-by: Clyde Stubbs <2366188+clydebarrow@users.noreply.github.com>
This commit is contained in:
Rodrigo Martín
2025-01-28 12:00:28 +01:00
committed by GitHub
parent dd18a219db
commit f7f8bf4da4
26 changed files with 1221 additions and 342 deletions
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1
CODEOWNERS
View File

@@ -148,6 +148,7 @@ esphome/components/esp32_rmt_led_strip/* @jesserockz
esphome/components/esp8266/* @esphome/core
esphome/components/ethernet_info/* @gtjadsonsantos
esphome/components/event/* @nohat
esphome/components/event_emitter/* @Rapsssito
esphome/components/exposure_notifications/* @OttoWinter
esphome/components/ezo/* @ssieb
esphome/components/ezo_pmp/* @carlos-sarmiento

2
esphome/components/ble_client/sensor/__init__.py
View File

@@ -11,6 +11,7 @@ from esphome.const import (
DEVICE_CLASS_SIGNAL_STRENGTH,
STATE_CLASS_MEASUREMENT,
UNIT_DECIBEL_MILLIWATT,
CONF_NOTIFY,
)
from .. import ble_client_ns
@@ -19,7 +20,6 @@ DEPENDENCIES = ["ble_client"]
CONF_DESCRIPTOR_UUID = "descriptor_uuid"
CONF_NOTIFY = "notify"
CONF_ON_NOTIFY = "on_notify"
TYPE_CHARACTERISTIC = "characteristic"
TYPE_RSSI = "rssi"

2
esphome/components/ble_client/text_sensor/__init__.py
View File

@@ -6,6 +6,7 @@ from esphome.const import (
CONF_CHARACTERISTIC_UUID,
CONF_ID,
CONF_SERVICE_UUID,
CONF_NOTIFY,
CONF_TRIGGER_ID,
)
@@ -15,7 +16,6 @@ DEPENDENCIES = ["ble_client"]
CONF_DESCRIPTOR_UUID = "descriptor_uuid"
CONF_NOTIFY = "notify"
CONF_ON_NOTIFY = "on_notify"
adv_data_t = cg.std_vector.template(cg.uint8)

39
esphome/components/esp32_ble/__init__.py
View File

@@ -1,3 +1,5 @@
import re
from esphome import automation
import esphome.codegen as cg
from esphome.components.esp32 import add_idf_sdkconfig_option, const, get_esp32_variant
@@ -64,6 +66,43 @@ CONFIG_SCHEMA = cv.Schema(
).extend(cv.COMPONENT_SCHEMA)
bt_uuid16_format = "XXXX"
bt_uuid32_format = "XXXXXXXX"
bt_uuid128_format = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
def bt_uuid(value):
in_value = cv.string_strict(value)
value = in_value.upper()
if len(value) == len(bt_uuid16_format):
pattern = re.compile("^[A-F|0-9]{4,}$")
if not pattern.match(value):
raise cv.Invalid(
f"Invalid hexadecimal value for 16 bit UUID format: '{in_value}'"
)
return value
if len(value) == len(bt_uuid32_format):
pattern = re.compile("^[A-F|0-9]{8,}$")
if not pattern.match(value):
raise cv.Invalid(
f"Invalid hexadecimal value for 32 bit UUID format: '{in_value}'"
)
return value
if len(value) == len(bt_uuid128_format):
pattern = re.compile(
"^[A-F|0-9]{8,}-[A-F|0-9]{4,}-[A-F|0-9]{4,}-[A-F|0-9]{4,}-[A-F|0-9]{12,}$"
)
if not pattern.match(value):
raise cv.Invalid(
f"Invalid hexadecimal value for 128 UUID format: '{in_value}'"
)
return value
raise cv.Invalid(
f"Bluetooth UUID must be in 16 bit '{bt_uuid16_format}', 32 bit '{bt_uuid32_format}', or 128 bit '{bt_uuid128_format}' format"
)
def validate_variant(_):
variant = get_esp32_variant()
if variant in NO_BLUETOOTH_VARIANTS:

594
esphome/components/esp32_ble_server/__init__.py
View File

@@ -1,37 +1,526 @@
import encodings
from esphome import automation
import esphome.codegen as cg
from esphome.components import esp32_ble
from esphome.components.esp32 import add_idf_sdkconfig_option
from esphome.components.esp32_ble import bt_uuid
import esphome.config_validation as cv
from esphome.const import CONF_ID, CONF_MODEL
from esphome.config_validation import UNDEFINED
from esphome.const import (
CONF_DATA,
CONF_ESPHOME,
CONF_ID,
CONF_MAX_LENGTH,
CONF_MODEL,
CONF_NOTIFY,
CONF_ON_CONNECT,
CONF_ON_DISCONNECT,
CONF_PROJECT,
CONF_SERVICES,
CONF_TYPE,
CONF_UUID,
CONF_VALUE,
__version__ as ESPHOME_VERSION,
)
from esphome.core import CORE
from esphome.schema_extractors import SCHEMA_EXTRACT
AUTO_LOAD = ["esp32_ble"]
AUTO_LOAD = ["esp32_ble", "bytebuffer", "event_emitter"]
CODEOWNERS = ["@jesserockz", "@clydebarrow", "@Rapsssito"]
DEPENDENCIES = ["esp32"]
DOMAIN = "esp32_ble_server"
CONF_ADVERTISE = "advertise"
CONF_BROADCAST = "broadcast"
CONF_CHARACTERISTICS = "characteristics"
CONF_DESCRIPTION = "description"
CONF_DESCRIPTORS = "descriptors"
CONF_ENDIANNESS = "endianness"
CONF_FIRMWARE_VERSION = "firmware_version"
CONF_INDICATE = "indicate"
CONF_MANUFACTURER = "manufacturer"
CONF_MANUFACTURER_DATA = "manufacturer_data"
CONF_ON_WRITE = "on_write"
CONF_READ = "read"
CONF_STRING = "string"
CONF_STRING_ENCODING = "string_encoding"
CONF_WRITE = "write"
CONF_WRITE_NO_RESPONSE = "write_no_response"
# Internal configuration keys
CONF_CHAR_VALUE_ACTION_ID_ = "char_value_action_id_"
# BLE reserverd UUIDs
CCCD_DESCRIPTOR_UUID = 0x2902
CUD_DESCRIPTOR_UUID = 0x2901
DEVICE_INFORMATION_SERVICE_UUID = 0x180A
MANUFACTURER_NAME_CHARACTERISTIC_UUID = 0x2A29
MODEL_CHARACTERISTIC_UUID = 0x2A24
FIRMWARE_VERSION_CHARACTERISTIC_UUID = 0x2A26
# Core key to store the global configuration
KEY_NOTIFY_REQUIRED = "notify_required"
KEY_SET_VALUE = "set_value"
esp32_ble_server_ns = cg.esphome_ns.namespace("esp32_ble_server")
ESPBTUUID_ns = cg.esphome_ns.namespace("esp32_ble").namespace("ESPBTUUID")
BLECharacteristic_ns = esp32_ble_server_ns.namespace("BLECharacteristic")
BLEServer = esp32_ble_server_ns.class_(
"BLEServer",
cg.Component,
esp32_ble.GATTsEventHandler,
cg.Parented.template(esp32_ble.ESP32BLE),
)
BLEServiceComponent = esp32_ble_server_ns.class_("BLEServiceComponent")
esp32_ble_server_automations_ns = esp32_ble_server_ns.namespace(
"esp32_ble_server_automations"
)
BLETriggers_ns = esp32_ble_server_automations_ns.namespace("BLETriggers")
BLEDescriptor = esp32_ble_server_ns.class_("BLEDescriptor")
BLECharacteristic = esp32_ble_server_ns.class_("BLECharacteristic")
BLEService = esp32_ble_server_ns.class_("BLEService")
BLECharacteristicSetValueAction = esp32_ble_server_automations_ns.class_(
"BLECharacteristicSetValueAction", automation.Action
)
BLEDescriptorSetValueAction = esp32_ble_server_automations_ns.class_(
"BLEDescriptorSetValueAction", automation.Action
)
BLECharacteristicNotifyAction = esp32_ble_server_automations_ns.class_(
"BLECharacteristicNotifyAction", automation.Action
)
bytebuffer_ns = cg.esphome_ns.namespace("bytebuffer")
Endianness_ns = bytebuffer_ns.namespace("Endian")
ByteBuffer_ns = bytebuffer_ns.namespace("ByteBuffer")
ByteBuffer = bytebuffer_ns.class_("ByteBuffer")
PROPERTY_MAP = {
CONF_READ: BLECharacteristic_ns.PROPERTY_READ,
CONF_WRITE: BLECharacteristic_ns.PROPERTY_WRITE,
CONF_NOTIFY: BLECharacteristic_ns.PROPERTY_NOTIFY,
CONF_BROADCAST: BLECharacteristic_ns.PROPERTY_BROADCAST,
CONF_INDICATE: BLECharacteristic_ns.PROPERTY_INDICATE,
CONF_WRITE_NO_RESPONSE: BLECharacteristic_ns.PROPERTY_WRITE_NR,
}
class ValueType:
def __init__(self, type_, validator, length):
self.type_ = type_
self.validator = validator
self.length = length
def validate(self, value, encoding):
value = self.validator(value)
if self.type_ == "string":
try:
value.encode(encoding)
except UnicodeEncodeError as e:
raise cv.Invalid(str(e)) from e
return value
VALUE_TYPES = {
type_name: ValueType(type_name, validator, length)
for type_name, validator, length in (
("uint8_t", cv.uint8_t, 1),
("uint16_t", cv.uint16_t, 2),
("uint32_t", cv.uint32_t, 4),
("uint64_t", cv.uint64_t, 8),
("int8_t", cv.int_range(-128, 127), 1),
("int16_t", cv.int_range(-32768, 32767), 2),
("int32_t", cv.int_range(-2147483648, 2147483647), 4),
("int64_t", cv.int_range(-9223372036854775808, 9223372036854775807), 8),
("float", cv.float_, 4),
("double", cv.float_, 8),
("string", cv.string_strict, None), # Length is variable
)
}
def validate_char_on_write(char_config):
if CONF_ON_WRITE in char_config:
if not char_config[CONF_WRITE] and not char_config[CONF_WRITE_NO_RESPONSE]:
raise cv.Invalid(
f"{CONF_ON_WRITE} requires the {CONF_WRITE} or {CONF_WRITE_NO_RESPONSE} property to be set"
)
return char_config
def validate_descriptor(desc_config):
if CONF_ON_WRITE in desc_config:
if not desc_config[CONF_WRITE]:
raise cv.Invalid(
f"{CONF_ON_WRITE} requires the {CONF_WRITE} property to be set"
)
if CONF_MAX_LENGTH not in desc_config:
value = desc_config[CONF_VALUE][CONF_DATA]
if cg.is_template(value):
raise cv.Invalid(
f"Descriptor {desc_config[CONF_UUID]} has a templatable value and the {CONF_MAX_LENGTH} property is not set"
)
if isinstance(value, list):
desc_config[CONF_MAX_LENGTH] = len(value)
elif isinstance(value, str):
desc_config[CONF_MAX_LENGTH] = len(
value.encode(desc_config[CONF_VALUE][CONF_STRING_ENCODING])
)
else:
desc_config[CONF_MAX_LENGTH] = VALUE_TYPES[
desc_config[CONF_VALUE][CONF_TYPE]
].length
return desc_config
def validate_notify_action(config):
# Store the characteristic ID in the global data for the final validation
data = CORE.data.setdefault(DOMAIN, {}).setdefault(KEY_NOTIFY_REQUIRED, set())
data.add(config[CONF_ID])
return config
def validate_set_value_action(config):
# Store the characteristic ID in the global data for the final validation
data = CORE.data.setdefault(DOMAIN, {}).setdefault(KEY_SET_VALUE, set())
data.add(config[CONF_ID])
return config
def create_description_cud(char_config):
if CONF_DESCRIPTION not in char_config:
return char_config
# If the config displays a description, there cannot be a descriptor with the CUD UUID
for desc in char_config[CONF_DESCRIPTORS]:
if desc[CONF_UUID] == CUD_DESCRIPTOR_UUID:
raise cv.Invalid(
f"Characteristic {char_config[CONF_UUID]} has a description, but a CUD descriptor is already present"
)
# Manually add the CUD descriptor
char_config[CONF_DESCRIPTORS].append(
DESCRIPTOR_SCHEMA(
{
CONF_UUID: CUD_DESCRIPTOR_UUID,
CONF_READ: True,
CONF_WRITE: False,
CONF_VALUE: char_config[CONF_DESCRIPTION],
}
)
)
return char_config
def create_notify_cccd(char_config):
if not char_config[CONF_NOTIFY] and not char_config[CONF_INDICATE]:
return char_config
# If the CCCD descriptor is already present, return the config
for desc in char_config[CONF_DESCRIPTORS]:
if desc[CONF_UUID] == CCCD_DESCRIPTOR_UUID:
# Check if the WRITE property is set
if not desc[CONF_WRITE]:
raise cv.Invalid(
f"Characteristic {char_config[CONF_UUID]} has notify actions, but the CCCD descriptor does not have the {CONF_WRITE} property set"
)
return char_config
# Manually add the CCCD descriptor
char_config[CONF_DESCRIPTORS].append(
DESCRIPTOR_SCHEMA(
{
CONF_UUID: CCCD_DESCRIPTOR_UUID,
CONF_READ: True,
CONF_WRITE: True,
CONF_MAX_LENGTH: 2,
CONF_VALUE: [0, 0],
}
)
)
return char_config
def create_device_information_service(config):
# If there is already a device information service,
# there cannot be CONF_MODEL, CONF_MANUFACTURER or CONF_FIRMWARE_VERSION properties
for service in config[CONF_SERVICES]:
if service[CONF_UUID] == DEVICE_INFORMATION_SERVICE_UUID:
if (
CONF_MODEL in config
or CONF_MANUFACTURER in config
or CONF_FIRMWARE_VERSION in config
):
raise cv.Invalid(
"Device information service already present, cannot add manufacturer, model or firmware version"
)
return config
project = CORE.raw_config[CONF_ESPHOME].get(CONF_PROJECT, {})
model = config.get(CONF_MODEL, project.get("name", CORE.data["esp32"]["board"]))
version = config.get(
CONF_FIRMWARE_VERSION, project.get("version", "ESPHome " + ESPHOME_VERSION)
)
# Manually add the device information service
config[CONF_SERVICES].append(
SERVICE_SCHEMA(
{
CONF_UUID: DEVICE_INFORMATION_SERVICE_UUID,
CONF_CHARACTERISTICS: [
{
CONF_UUID: MANUFACTURER_NAME_CHARACTERISTIC_UUID,
CONF_READ: True,
CONF_VALUE: config.get(CONF_MANUFACTURER, "ESPHome"),
},
{
CONF_UUID: MODEL_CHARACTERISTIC_UUID,
CONF_READ: True,
CONF_VALUE: model,
},
{
CONF_UUID: FIRMWARE_VERSION_CHARACTERISTIC_UUID,
CONF_READ: True,
CONF_VALUE: version,
},
],
}
)
)
return config
def final_validate_config(config):
# Check if all characteristics that require notifications have the notify property set
for char_id in CORE.data.get(DOMAIN, {}).get(KEY_NOTIFY_REQUIRED, set()):
# Look for the characteristic in the configuration
char_config = [
char_conf
for service_conf in config[CONF_SERVICES]
for char_conf in service_conf[CONF_CHARACTERISTICS]
if char_conf[CONF_ID] == char_id
][0]
if not char_config[CONF_NOTIFY]:
raise cv.Invalid(
f"Characteristic {char_config[CONF_UUID]} has notify actions and the {CONF_NOTIFY} property is not set"
)
for char_id in CORE.data.get(DOMAIN, {}).get(KEY_SET_VALUE, set()):
# Look for the characteristic in the configuration
char_config = [
char_conf
for service_conf in config[CONF_SERVICES]
for char_conf in service_conf[CONF_CHARACTERISTICS]
if char_conf[CONF_ID] == char_id
][0]
if isinstance(char_config.get(CONF_VALUE, {}).get(CONF_DATA), cv.Lambda):
raise cv.Invalid(
f"Characteristic {char_config[CONF_UUID]} has both a set_value action and a templated value"
)
return config
def validate_value_type(value_config):
# If the value is a not a templatable, the type must be set
value = value_config[CONF_DATA]
if type_ := value_config.get(CONF_TYPE):
if cg.is_template(value):
raise cv.Invalid(
f'The "{CONF_TYPE}" property is not allowed for templatable values'
)
value_config[CONF_DATA] = VALUE_TYPES[type_].validate(
value, value_config[CONF_STRING_ENCODING]
)
elif isinstance(value, (float, int)):
raise cv.Invalid(
f'The "{CONF_TYPE}" property is required for the value "{value}"'
)
return value_config
def validate_encoding(value):
if value == SCHEMA_EXTRACT:
return cv.one_of("utf-8", "latin-1", "ascii", "utf-16", "utf-32")
value = encodings.normalize_encoding(value)
if not value:
raise cv.Invalid("Invalid encoding")
return value
def value_schema(default_type=UNDEFINED, templatable=True):
data_validators = [
cv.string_strict,
cv.int_,
cv.float_,
cv.All([cv.uint8_t], cv.Length(min=1)),
]
if templatable:
data_validators.append(cv.returning_lambda)
return cv.maybe_simple_value(
cv.All(
{
cv.Required(CONF_DATA): cv.Any(*data_validators),
cv.Optional(CONF_TYPE, default=default_type): cv.one_of(
*VALUE_TYPES, lower=True
),
cv.Optional(CONF_STRING_ENCODING, default="utf_8"): validate_encoding,
cv.Optional(CONF_ENDIANNESS, default="LITTLE"): cv.enum(
{
"LITTLE": Endianness_ns.LITTLE,
"BIG": Endianness_ns.BIG,
}
),
},
validate_value_type,
),
key=CONF_DATA,
)
DESCRIPTOR_SCHEMA = cv.All(
{
cv.GenerateID(): cv.declare_id(BLEDescriptor),
cv.Required(CONF_UUID): cv.Any(bt_uuid, cv.hex_uint32_t),
cv.Optional(CONF_READ, default=True): cv.boolean,
cv.Optional(CONF_WRITE, default=True): cv.boolean,
cv.Optional(CONF_ON_WRITE): automation.validate_automation(single=True),
cv.Required(CONF_VALUE): value_schema(templatable=False),
cv.Optional(CONF_MAX_LENGTH): cv.uint16_t,
},
validate_descriptor,
)
CHARACTERISTIC_SCHEMA = cv.Schema(
{
cv.GenerateID(): cv.declare_id(BLECharacteristic),
cv.Required(CONF_UUID): cv.Any(bt_uuid, cv.hex_uint32_t),
cv.Optional(CONF_VALUE): value_schema(templatable=True),
cv.GenerateID(CONF_CHAR_VALUE_ACTION_ID_): cv.declare_id(
BLECharacteristicSetValueAction
),
cv.Optional(CONF_DESCRIPTORS, default=[]): cv.ensure_list(DESCRIPTOR_SCHEMA),
cv.Optional(CONF_ON_WRITE): automation.validate_automation(single=True),
cv.Optional(CONF_DESCRIPTION): value_schema(
default_type="string", templatable=False
),
},
extra_schemas=[
validate_char_on_write,
create_description_cud,
create_notify_cccd,
],
).extend({cv.Optional(k, default=False): cv.boolean for k in PROPERTY_MAP})
SERVICE_SCHEMA = cv.Schema(
{
cv.GenerateID(): cv.declare_id(BLEService),
cv.Required(CONF_UUID): cv.Any(bt_uuid, cv.hex_uint32_t),
cv.Optional(CONF_ADVERTISE, default=False): cv.boolean,
cv.Optional(CONF_CHARACTERISTICS, default=[]): cv.ensure_list(
CHARACTERISTIC_SCHEMA
),
}
)
CONFIG_SCHEMA = cv.Schema(
{
cv.GenerateID(): cv.declare_id(BLEServer),
cv.GenerateID(esp32_ble.CONF_BLE_ID): cv.use_id(esp32_ble.ESP32BLE),
cv.Optional(CONF_MANUFACTURER, default="ESPHome"): cv.string,
cv.Optional(CONF_MANUFACTURER_DATA): cv.Schema([cv.hex_uint8_t]),
cv.Optional(CONF_MODEL): cv.string,
}
cv.Optional(CONF_MANUFACTURER): value_schema("string", templatable=False),
cv.Optional(CONF_MODEL): value_schema("string", templatable=False),
cv.Optional(CONF_FIRMWARE_VERSION): value_schema("string", templatable=False),
cv.Optional(CONF_MANUFACTURER_DATA): cv.Schema([cv.uint8_t]),
cv.Optional(CONF_SERVICES, default=[]): cv.ensure_list(SERVICE_SCHEMA),
cv.Optional(CONF_ON_CONNECT): automation.validate_automation(single=True),
cv.Optional(CONF_ON_DISCONNECT): automation.validate_automation(single=True),
},
extra_schemas=[create_device_information_service],
).extend(cv.COMPONENT_SCHEMA)
FINAL_VALIDATE_SCHEMA = final_validate_config
def parse_properties(char_conf):
return sum(
(PROPERTY_MAP[k] for k in char_conf if k in PROPERTY_MAP and char_conf[k]),
start=0,
)
def parse_uuid(uuid):
# If the UUID is a int, use from_uint32
if isinstance(uuid, int):
return ESPBTUUID_ns.from_uint32(uuid)
# Otherwise, use ESPBTUUID_ns.from_raw
return ESPBTUUID_ns.from_raw(uuid)
async def parse_value(value_config, args):
value = value_config[CONF_DATA]
if isinstance(value, cv.Lambda):
return await cg.templatable(value, args, cg.std_vector.template(cg.uint8))
if isinstance(value, str):
value = list(value.encode(value_config[CONF_STRING_ENCODING]))
if isinstance(value, list):
return cg.std_vector.template(cg.uint8)(value)
val = cg.RawExpression(f"{value_config[CONF_TYPE]}({cg.safe_exp(value)})")
return ByteBuffer_ns.wrap(val, value_config[CONF_ENDIANNESS])
def calculate_num_handles(service_config):
total = 1 + len(service_config[CONF_CHARACTERISTICS]) * 2
total += sum(
len(char_conf[CONF_DESCRIPTORS])
for char_conf in service_config[CONF_CHARACTERISTICS]
)
return total
async def to_code_descriptor(descriptor_conf, char_var):
value = await parse_value(descriptor_conf[CONF_VALUE], {})
desc_var = cg.new_Pvariable(
descriptor_conf[CONF_ID],
parse_uuid(descriptor_conf[CONF_UUID]),
descriptor_conf[CONF_MAX_LENGTH],
descriptor_conf[CONF_READ],
descriptor_conf[CONF_WRITE],
)
cg.add(char_var.add_descriptor(desc_var))
cg.add(desc_var.set_value(value))
if CONF_ON_WRITE in descriptor_conf:
on_write_conf = descriptor_conf[CONF_ON_WRITE]
await automation.build_automation(
BLETriggers_ns.create_descriptor_on_write_trigger(desc_var),
[(cg.std_vector.template(cg.uint8), "x"), (cg.uint16, "id")],
on_write_conf,
)
async def to_code_characteristic(service_var, char_conf):
char_var = cg.Pvariable(
char_conf[CONF_ID],
service_var.create_characteristic(
parse_uuid(char_conf[CONF_UUID]),
parse_properties(char_conf),
),
)
if CONF_ON_WRITE in char_conf:
on_write_conf = char_conf[CONF_ON_WRITE]
await automation.build_automation(
BLETriggers_ns.create_characteristic_on_write_trigger(char_var),
[(cg.std_vector.template(cg.uint8), "x"), (cg.uint16, "id")],
on_write_conf,
)
if CONF_VALUE in char_conf:
action_conf = {
CONF_ID: char_conf[CONF_ID],
CONF_VALUE: char_conf[CONF_VALUE],
}
value_action = await ble_server_characteristic_set_value(
action_conf,
char_conf[CONF_CHAR_VALUE_ACTION_ID_],
cg.TemplateArguments(),
{},
)
cg.add(value_action.play())
for descriptor_conf in char_conf[CONF_DESCRIPTORS]:
await to_code_descriptor(descriptor_conf, char_var)
async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
@@ -42,13 +531,94 @@ async def to_code(config):
cg.add(parent.register_gatts_event_handler(var))
cg.add(parent.register_ble_status_event_handler(var))
cg.add(var.set_parent(parent))
cg.add(var.set_manufacturer(config[CONF_MANUFACTURER]))
if CONF_MANUFACTURER_DATA in config:
cg.add(var.set_manufacturer_data(config[CONF_MANUFACTURER_DATA]))
if CONF_MODEL in config:
cg.add(var.set_model(config[CONF_MODEL]))
for service_config in config[CONF_SERVICES]:
# Calculate the optimal number of handles based on the number of characteristics and descriptors
num_handles = calculate_num_handles(service_config)
service_var = cg.Pvariable(
service_config[CONF_ID],
var.create_service(
parse_uuid(service_config[CONF_UUID]),
service_config[CONF_ADVERTISE],
num_handles,
),
)
for char_conf in service_config[CONF_CHARACTERISTICS]:
await to_code_characteristic(service_var, char_conf)
if service_config[CONF_UUID] == DEVICE_INFORMATION_SERVICE_UUID:
cg.add(var.set_device_information_service(service_var))
else:
cg.add(var.enqueue_start_service(service_var))
if CONF_ON_CONNECT in config:
await automation.build_automation(
BLETriggers_ns.create_server_on_connect_trigger(var),
[(cg.uint16, "id")],
config[CONF_ON_CONNECT],
)
if CONF_ON_DISCONNECT in config:
await automation.build_automation(
BLETriggers_ns.create_server_on_disconnect_trigger(var),
[(cg.uint16, "id")],
config[CONF_ON_DISCONNECT],
)
cg.add_define("USE_ESP32_BLE_SERVER")
if CORE.using_esp_idf:
add_idf_sdkconfig_option("CONFIG_BT_ENABLED", True)
@automation.register_action(
"ble_server.characteristic.set_value",
BLECharacteristicSetValueAction,
cv.All(
cv.Schema(
{
cv.Required(CONF_ID): cv.use_id(BLECharacteristic),
cv.Required(CONF_VALUE): value_schema(),
}
),
validate_set_value_action,
),
)
async def ble_server_characteristic_set_value(config, action_id, template_arg, args):
paren = await cg.get_variable(config[CONF_ID])
var = cg.new_Pvariable(action_id, template_arg, paren)
value = await parse_value(config[CONF_VALUE], args)
cg.add(var.set_buffer(value))
return var
@automation.register_action(
"ble_server.descriptor.set_value",
BLEDescriptorSetValueAction,
cv.Schema(
{
cv.Required(CONF_ID): cv.use_id(BLEDescriptor),
cv.Required(CONF_VALUE): value_schema(),
}
),
)
async def ble_server_descriptor_set_value(config, action_id, template_arg, args):
paren = await cg.get_variable(config[CONF_ID])
var = cg.new_Pvariable(action_id, template_arg, paren)
value = await parse_value(config[CONF_VALUE], args)
cg.add(var.set_buffer(value))
return var
@automation.register_action(
"ble_server.characteristic.notify",
BLECharacteristicNotifyAction,
cv.All(
cv.Schema(
{
cv.Required(CONF_ID): cv.use_id(BLECharacteristic),
}
),
validate_notify_action,
),
)
async def ble_server_characteristic_notify(config, action_id, template_arg, args):
paren = await cg.get_variable(config[CONF_ID])
var = cg.new_Pvariable(action_id, template_arg, paren)
return var

18
esphome/components/esp32_ble_server/ble_2901.cpp
View File

@@ -1,18 +0,0 @@
#include "ble_2901.h"
#include "esphome/components/esp32_ble/ble_uuid.h"
#ifdef USE_ESP32
namespace esphome {
namespace esp32_ble_server {
BLE2901::BLE2901(const std::string &value) : BLE2901((uint8_t *) value.data(), value.length()) {}
BLE2901::BLE2901(const uint8_t *data, size_t length) : BLEDescriptor(esp32_ble::ESPBTUUID::from_uint16(0x2901)) {
this->set_value(data, length);
this->permissions_ = ESP_GATT_PERM_READ;
}
} // namespace esp32_ble_server
} // namespace esphome
#endif

19
esphome/components/esp32_ble_server/ble_2901.h
View File

@@ -1,19 +0,0 @@
#pragma once
#include "ble_descriptor.h"
#ifdef USE_ESP32
namespace esphome {
namespace esp32_ble_server {
class BLE2901 : public BLEDescriptor {
public:
BLE2901(const std::string &value);
BLE2901(const uint8_t *data, size_t length);
};
} // namespace esp32_ble_server
} // namespace esphome
#endif

108
esphome/components/esp32_ble_server/ble_characteristic.cpp
View File

@@ -32,70 +32,36 @@ BLECharacteristic::BLECharacteristic(const ESPBTUUID uuid, uint32_t properties)
this->set_write_no_response_property((properties & PROPERTY_WRITE_NR) != 0);
}
void BLECharacteristic::set_value(std::vector<uint8_t> value) {
void BLECharacteristic::set_value(ByteBuffer buffer) { this->set_value(buffer.get_data()); }
void BLECharacteristic::set_value(const std::vector<uint8_t> &buffer) {
xSemaphoreTake(this->set_value_lock_, 0L);
this->value_ = std::move(value);
this->value_ = buffer;
xSemaphoreGive(this->set_value_lock_);
}
void BLECharacteristic::set_value(const std::string &value) {
this->set_value(std::vector<uint8_t>(value.begin(), value.end()));
}
void BLECharacteristic::set_value(const uint8_t *data, size_t length) {
this->set_value(std::vector<uint8_t>(data, data + length));
}
void BLECharacteristic::set_value(uint8_t &data) {
uint8_t temp[1];
temp[0] = data;
this->set_value(temp, 1);
}
void BLECharacteristic::set_value(uint16_t &data) {
uint8_t temp[2];
temp[0] = data;
temp[1] = data >> 8;
this->set_value(temp, 2);
}
void BLECharacteristic::set_value(uint32_t &data) {
uint8_t temp[4];
temp[0] = data;
temp[1] = data >> 8;
temp[2] = data >> 16;
temp[3] = data >> 24;
this->set_value(temp, 4);
}
void BLECharacteristic::set_value(int &data) {
uint8_t temp[4];
temp[0] = data;
temp[1] = data >> 8;
temp[2] = data >> 16;
temp[3] = data >> 24;
this->set_value(temp, 4);
}
void BLECharacteristic::set_value(float &data) {
float temp = data;
this->set_value((uint8_t *) &temp, 4);
}
void BLECharacteristic::set_value(double &data) {
double temp = data;
this->set_value((uint8_t *) &temp, 8);
}
void BLECharacteristic::set_value(bool &data) {
uint8_t temp[1];
temp[0] = data;
this->set_value(temp, 1);
void BLECharacteristic::set_value(const std::string &buffer) {
this->set_value(std::vector<uint8_t>(buffer.begin(), buffer.end()));
}
void BLECharacteristic::notify(bool notification) {
if (!notification) {
ESP_LOGW(TAG, "notification=false is not yet supported");
// TODO: Handle when notification=false
}
if (this->service_->get_server()->get_connected_client_count() == 0)
void BLECharacteristic::notify() {
if (this->service_ == nullptr || this->service_->get_server() == nullptr ||
this->service_->get_server()->get_connected_client_count() == 0)
return;
for (auto &client : this->service_->get_server()->get_clients()) {
size_t length = this->value_.size();
esp_err_t err = esp_ble_gatts_send_indicate(this->service_->get_server()->get_gatts_if(), client.first,
this->handle_, length, this->value_.data(), false);
// If the client is not in the list of clients to notify, skip it
if (this->clients_to_notify_.count(client) == 0)
continue;
// If the client is in the list of clients to notify, check if it requires an ack (i.e. INDICATE)
bool require_ack = this->clients_to_notify_[client];
// TODO: Remove this block when INDICATE acknowledgment is supported
if (require_ack) {
ESP_LOGW(TAG, "INDICATE acknowledgment is not yet supported (i.e. it works as a NOTIFY)");
require_ack = false;
}
esp_err_t err = esp_ble_gatts_send_indicate(this->service_->get_server()->get_gatts_if(), client, this->handle_,
length, this->value_.data(), require_ack);
if (err != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gatts_send_indicate failed %d", err);
return;
@@ -103,7 +69,24 @@ void BLECharacteristic::notify(bool notification) {
}
}
void BLECharacteristic::add_descriptor(BLEDescriptor *descriptor) { this->descriptors_.push_back(descriptor); }
void BLECharacteristic::add_descriptor(BLEDescriptor *descriptor) {
// If the descriptor is the CCCD descriptor, listen to its write event to know if the client wants to be notified
if (descriptor->get_uuid() == ESPBTUUID::from_uint16(ESP_GATT_UUID_CHAR_CLIENT_CONFIG)) {
descriptor->on(BLEDescriptorEvt::VectorEvt::ON_WRITE, [this](const std::vector<uint8_t> &value, uint16_t conn_id) {
if (value.size() != 2)
return;
uint16_t cccd = encode_uint16(value[1], value[0]);
bool notify = (cccd & 1) != 0;
bool indicate = (cccd & 2) != 0;
if (notify || indicate) {
this->clients_to_notify_[conn_id] = indicate;
} else {
this->clients_to_notify_.erase(conn_id);
}
});
}
this->descriptors_.push_back(descriptor);
}
void BLECharacteristic::remove_descriptor(BLEDescriptor *descriptor) {
this->descriptors_.erase(std::remove(this->descriptors_.begin(), this->descriptors_.end(), descriptor),
@@ -223,6 +206,9 @@ void BLECharacteristic::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt
if (!param->read.need_rsp)
break; // For some reason you can request a read but not want a response
this->EventEmitter<BLECharacteristicEvt::EmptyEvt, uint16_t>::emit_(BLECharacteristicEvt::EmptyEvt::ON_READ,
param->read.conn_id);
uint16_t max_offset = 22;
esp_gatt_rsp_t response;
@@ -262,13 +248,13 @@ void BLECharacteristic::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt
}
case ESP_GATTS_WRITE_EVT: {
if (this->handle_ != param->write.handle)
return;
break;
if (param->write.is_prep) {
this->value_.insert(this->value_.end(), param->write.value, param->write.value + param->write.len);
this->write_event_ = true;
} else {
this->set_value(param->write.value, param->write.len);
this->set_value(ByteBuffer::wrap(param->write.value, param->write.len));
}
if (param->write.need_rsp) {
@@ -289,7 +275,8 @@ void BLECharacteristic::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt
}
if (!param->write.is_prep) {
this->on_write_(this->value_);
this->EventEmitter<BLECharacteristicEvt::VectorEvt, std::vector<uint8_t>, uint16_t>::emit_(
BLECharacteristicEvt::VectorEvt::ON_WRITE, this->value_, param->write.conn_id);
}
break;
@@ -300,7 +287,8 @@ void BLECharacteristic::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt
break;
this->write_event_ = false;
if (param->exec_write.exec_write_flag == ESP_GATT_PREP_WRITE_EXEC) {
this->on_write_(this->value_);
this->EventEmitter<BLECharacteristicEvt::VectorEvt, std::vector<uint8_t>, uint16_t>::emit_(
BLECharacteristicEvt::VectorEvt::ON_WRITE, this->value_, param->exec_write.conn_id);
}
esp_err_t err =
esp_ble_gatts_send_response(gatts_if, param->write.conn_id, param->write.trans_id, ESP_GATT_OK, nullptr);

41
esphome/components/esp32_ble_server/ble_characteristic.h
View File

@@ -2,8 +2,11 @@
#include "ble_descriptor.h"
#include "esphome/components/esp32_ble/ble_uuid.h"
#include "esphome/components/event_emitter/event_emitter.h"
#include "esphome/components/bytebuffer/bytebuffer.h"
#include <vector>
#include <unordered_map>
#ifdef USE_ESP32
@@ -19,24 +22,30 @@ namespace esphome {
namespace esp32_ble_server {
using namespace esp32_ble;
using namespace bytebuffer;
using namespace event_emitter;
class BLEService;
class BLECharacteristic {
namespace BLECharacteristicEvt {
enum VectorEvt {
ON_WRITE,
};
enum EmptyEvt {
ON_READ,
};
} // namespace BLECharacteristicEvt
class BLECharacteristic : public EventEmitter<BLECharacteristicEvt::VectorEvt, std::vector<uint8_t>, uint16_t>,
public EventEmitter<BLECharacteristicEvt::EmptyEvt, uint16_t> {
public:
BLECharacteristic(ESPBTUUID uuid, uint32_t properties);
~BLECharacteristic();
void set_value(const uint8_t *data, size_t length);
void set_value(std::vector<uint8_t> value);
void set_value(const std::string &value);
void set_value(uint8_t &data);
void set_value(uint16_t &data);
void set_value(uint32_t &data);
void set_value(int &data);
void set_value(float &data);
void set_value(double &data);
void set_value(bool &data);
void set_value(ByteBuffer buffer);
void set_value(const std::vector<uint8_t> &buffer);
void set_value(const std::string &buffer);
void set_broadcast_property(bool value);
void set_indicate_property(bool value);
@@ -45,13 +54,12 @@ class BLECharacteristic {
void set_write_property(bool value);
void set_write_no_response_property(bool value);
void notify(bool notification = true);
void notify();
void do_create(BLEService *service);
void do_delete() { this->clients_to_notify_.clear(); }
void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
void on_write(const std::function<void(const std::vector<uint8_t> &)> &&func) { this->on_write_ = func; }
void add_descriptor(BLEDescriptor *descriptor);
void remove_descriptor(BLEDescriptor *descriptor);
@@ -71,7 +79,7 @@ class BLECharacteristic {
protected:
bool write_event_{false};
BLEService *service_;
BLEService *service_{};
ESPBTUUID uuid_;
esp_gatt_char_prop_t properties_;
uint16_t handle_{0xFFFF};
@@ -81,8 +89,7 @@ class BLECharacteristic {
SemaphoreHandle_t set_value_lock_;
std::vector<BLEDescriptor *> descriptors_;
std::function<void(const std::vector<uint8_t> &)> on_write_;
std::unordered_map<uint16_t, bool> clients_to_notify_;
esp_gatt_perm_t permissions_ = ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE;

30
esphome/components/esp32_ble_server/ble_descriptor.cpp
View File

@@ -12,11 +12,19 @@ namespace esp32_ble_server {
static const char *const TAG = "esp32_ble_server.descriptor";
BLEDescriptor::BLEDescriptor(ESPBTUUID uuid, uint16_t max_len) {
static RAMAllocator<uint8_t> descriptor_allocator{}; // NOLINT
BLEDescriptor::BLEDescriptor(ESPBTUUID uuid, uint16_t max_len, bool read, bool write) {
this->uuid_ = uuid;
this->value_.attr_len = 0;
this->value_.attr_max_len = max_len;
this->value_.attr_value = (uint8_t *) malloc(max_len); // NOLINT
this->value_.attr_value = descriptor_allocator.allocate(max_len);
if (read) {
this->permissions_ |= ESP_GATT_PERM_READ;
}
if (write) {
this->permissions_ |= ESP_GATT_PERM_WRITE;
}
}
BLEDescriptor::~BLEDescriptor() { free(this->value_.attr_value); } // NOLINT
@@ -38,14 +46,15 @@ void BLEDescriptor::do_create(BLECharacteristic *characteristic) {
this->state_ = CREATING;
}
void BLEDescriptor::set_value(const std::string &value) { this->set_value((uint8_t *) value.data(), value.length()); }
void BLEDescriptor::set_value(const uint8_t *data, size_t length) {
void BLEDescriptor::set_value(std::vector<uint8_t> buffer) {
size_t length = buffer.size();
if (length > this->value_.attr_max_len) {
ESP_LOGE(TAG, "Size %d too large, must be no bigger than %d", length, this->value_.attr_max_len);
return;
}
this->value_.attr_len = length;
memcpy(this->value_.attr_value, data, length);
memcpy(this->value_.attr_value, buffer.data(), length);
}
void BLEDescriptor::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if,
@@ -61,10 +70,13 @@ void BLEDescriptor::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_
break;
}
case ESP_GATTS_WRITE_EVT: {
if (this->handle_ == param->write.handle) {
this->value_.attr_len = param->write.len;
memcpy(this->value_.attr_value, param->write.value, param->write.len);
}
if (this->handle_ != param->write.handle)
break;
this->value_.attr_len = param->write.len;
memcpy(this->value_.attr_value, param->write.value, param->write.len);
this->emit_(BLEDescriptorEvt::VectorEvt::ON_WRITE,
std::vector<uint8_t>(param->write.value, param->write.value + param->write.len),
param->write.conn_id);
break;
}
default:

23
esphome/components/esp32_ble_server/ble_descriptor.h
View File

@@ -1,6 +1,8 @@
#pragma once
#include "esphome/components/esp32_ble/ble_uuid.h"
#include "esphome/components/event_emitter/event_emitter.h"
#include "esphome/components/bytebuffer/bytebuffer.h"
#ifdef USE_ESP32
@@ -11,17 +13,26 @@ namespace esphome {
namespace esp32_ble_server {
using namespace esp32_ble;
using namespace bytebuffer;
using namespace event_emitter;
class BLECharacteristic;
class BLEDescriptor {
namespace BLEDescriptorEvt {
enum VectorEvt {
ON_WRITE,
};
} // namespace BLEDescriptorEvt
class BLEDescriptor : public EventEmitter<BLEDescriptorEvt::VectorEvt, std::vector<uint8_t>, uint16_t> {
public:
BLEDescriptor(ESPBTUUID uuid, uint16_t max_len = 100);
BLEDescriptor(ESPBTUUID uuid, uint16_t max_len = 100, bool read = true, bool write = true);
virtual ~BLEDescriptor();
void do_create(BLECharacteristic *characteristic);
ESPBTUUID get_uuid() const { return this->uuid_; }
void set_value(const std::string &value);
void set_value(const uint8_t *data, size_t length);
void set_value(std::vector<uint8_t> buffer);
void set_value(ByteBuffer buffer) { this->set_value(buffer.get_data()); }
void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
@@ -33,9 +44,9 @@ class BLEDescriptor {
ESPBTUUID uuid_;
uint16_t handle_{0xFFFF};
esp_attr_value_t value_;
esp_attr_value_t value_{};
esp_gatt_perm_t permissions_ = ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE;
esp_gatt_perm_t permissions_{};
enum State : uint8_t {
FAILED = 0x00,

129
esphome/components/esp32_ble_server/ble_server.cpp
View File

@@ -19,11 +19,6 @@ namespace esp32_ble_server {
static const char *const TAG = "esp32_ble_server";
static const uint16_t DEVICE_INFORMATION_SERVICE_UUID = 0x180A;
static const uint16_t MODEL_UUID = 0x2A24;
static const uint16_t VERSION_UUID = 0x2A26;
static const uint16_t MANUFACTURER_UUID = 0x2A29;
void BLEServer::setup() {
if (this->parent_->is_failed()) {
this->mark_failed();
@@ -38,9 +33,27 @@ void BLEServer::loop() {
return;
}
switch (this->state_) {
case RUNNING:
return;
case RUNNING: {
// Start all services that are pending to start
if (!this->services_to_start_.empty()) {
uint16_t index_to_remove = 0;
// Iterate over the services to start
for (unsigned i = 0; i < this->services_to_start_.size(); i++) {
BLEService *service = this->services_to_start_[i];
if (service->is_created()) {
service->start(); // Needs to be called once per characteristic in the service
} else {
index_to_remove = i + 1;
}
}
// Remove the services that have been started
if (index_to_remove > 0) {
this->services_to_start_.erase(this->services_to_start_.begin(),
this->services_to_start_.begin() + index_to_remove - 1);
}
}
break;
}
case INIT: {
esp_err_t err = esp_ble_gatts_app_register(0);
if (err != ESP_OK) {
@@ -53,29 +66,26 @@ void BLEServer::loop() {
}
case REGISTERING: {
if (this->registered_) {
// Create the device information service first so
// it is at the top of the GATT table
this->device_information_service_->do_create(this);
// Create all services previously created
for (auto &pair : this->services_) {
if (pair.second == this->device_information_service_) {
continue;
}
pair.second->do_create(this);
}
if (this->device_information_service_ == nullptr) {
this->create_service(ESPBTUUID::from_uint16(DEVICE_INFORMATION_SERVICE_UUID));
this->device_information_service_ =
this->get_service(ESPBTUUID::from_uint16(DEVICE_INFORMATION_SERVICE_UUID));
this->create_device_characteristics_();
}
this->state_ = STARTING_SERVICE;
}
break;
}
case STARTING_SERVICE: {
if (!this->device_information_service_->is_created()) {
break;
}
if (this->device_information_service_->is_running()) {
this->state_ = RUNNING;
this->restart_advertising_();
ESP_LOGD(TAG, "BLE server setup successfully");
} else if (!this->device_information_service_->is_starting()) {
} else if (this->device_information_service_->is_created()) {
this->device_information_service_->start();
}
break;
@@ -93,81 +103,66 @@ void BLEServer::restart_advertising_() {
}
}
bool BLEServer::create_device_characteristics_() {
if (this->model_.has_value()) {
BLECharacteristic *model =
this->device_information_service_->create_characteristic(MODEL_UUID, BLECharacteristic::PROPERTY_READ);
model->set_value(this->model_.value());
} else {
BLECharacteristic *model =
this->device_information_service_->create_characteristic(MODEL_UUID, BLECharacteristic::PROPERTY_READ);
model->set_value(ESPHOME_BOARD);
}
BLECharacteristic *version =
this->device_information_service_->create_characteristic(VERSION_UUID, BLECharacteristic::PROPERTY_READ);
version->set_value("ESPHome " ESPHOME_VERSION);
BLECharacteristic *manufacturer =
this->device_information_service_->create_characteristic(MANUFACTURER_UUID, BLECharacteristic::PROPERTY_READ);
manufacturer->set_value(this->manufacturer_);
return true;
}
void BLEServer::create_service(ESPBTUUID uuid, bool advertise, uint16_t num_handles, uint8_t inst_id) {
BLEService *BLEServer::create_service(ESPBTUUID uuid, bool advertise, uint16_t num_handles) {
ESP_LOGV(TAG, "Creating BLE service - %s", uuid.to_string().c_str());
// If the service already exists, do nothing
BLEService *service = this->get_service(uuid);
if (service != nullptr) {
ESP_LOGW(TAG, "BLE service %s already exists", uuid.to_string().c_str());
return;
// Calculate the inst_id for the service
uint8_t inst_id = 0;
for (; inst_id < 0xFF; inst_id++) {
if (this->get_service(uuid, inst_id) == nullptr) {
break;
}
}
service = new BLEService(uuid, num_handles, inst_id, advertise); // NOLINT(cppcoreguidelines-owning-memory)
this->services_.emplace(uuid.to_string(), service);
service->do_create(this);
if (inst_id == 0xFF) {
ESP_LOGW(TAG, "Could not create BLE service %s, too many instances", uuid.to_string().c_str());
return nullptr;
}
BLEService *service = // NOLINT(cppcoreguidelines-owning-memory)
new BLEService(uuid, num_handles, inst_id, advertise);
this->services_.emplace(BLEServer::get_service_key(uuid, inst_id), service);
if (this->parent_->is_active() && this->registered_) {
service->do_create(this);
}
return service;
}
void BLEServer::remove_service(ESPBTUUID uuid) {
ESP_LOGV(TAG, "Removing BLE service - %s", uuid.to_string().c_str());
BLEService *service = this->get_service(uuid);
void BLEServer::remove_service(ESPBTUUID uuid, uint8_t inst_id) {
ESP_LOGV(TAG, "Removing BLE service - %s %d", uuid.to_string().c_str(), inst_id);
BLEService *service = this->get_service(uuid, inst_id);
if (service == nullptr) {
ESP_LOGW(TAG, "BLE service %s not found", uuid.to_string().c_str());
ESP_LOGW(TAG, "BLE service %s %d does not exist", uuid.to_string().c_str(), inst_id);
return;
}
service->do_delete();
delete service; // NOLINT(cppcoreguidelines-owning-memory)
this->services_.erase(uuid.to_string());
this->services_.erase(BLEServer::get_service_key(uuid, inst_id));
}
BLEService *BLEServer::get_service(ESPBTUUID uuid) {
BLEService *BLEServer::get_service(ESPBTUUID uuid, uint8_t inst_id) {
BLEService *service = nullptr;
if (this->services_.count(uuid.to_string()) > 0) {
service = this->services_.at(uuid.to_string());
if (this->services_.count(BLEServer::get_service_key(uuid, inst_id)) > 0) {
service = this->services_.at(BLEServer::get_service_key(uuid, inst_id));
}
return service;
}
std::string BLEServer::get_service_key(ESPBTUUID uuid, uint8_t inst_id) {
return uuid.to_string() + std::to_string(inst_id);
}
void BLEServer::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if,
esp_ble_gatts_cb_param_t *param) {
switch (event) {
case ESP_GATTS_CONNECT_EVT: {
ESP_LOGD(TAG, "BLE Client connected");
this->add_client_(param->connect.conn_id, (void *) this);
this->connected_clients_++;
for (auto *component : this->service_components_) {
component->on_client_connect();
}
this->add_client_(param->connect.conn_id);
this->emit_(BLEServerEvt::EmptyEvt::ON_CONNECT, param->connect.conn_id);
break;
}
case ESP_GATTS_DISCONNECT_EVT: {
ESP_LOGD(TAG, "BLE Client disconnected");
if (this->remove_client_(param->disconnect.conn_id))
this->connected_clients_--;
this->remove_client_(param->disconnect.conn_id);
this->parent_->advertising_start();
for (auto *component : this->service_components_) {
component->on_client_disconnect();
}
this->emit_(BLEServerEvt::EmptyEvt::ON_DISCONNECT, param->disconnect.conn_id);
break;
}
case ESP_GATTS_REG_EVT: {

60
esphome/components/esp32_ble_server/ble_server.h
View File

@@ -4,36 +4,38 @@
#include "ble_characteristic.h"
#include "esphome/components/esp32_ble/ble.h"
#include "esphome/components/esp32_ble/ble_advertising.h"
#include "esphome/components/esp32_ble/ble_uuid.h"
#include "esphome/components/esp32_ble/queue.h"
#include "esphome/components/bytebuffer/bytebuffer.h"
#include "esphome/core/component.h"
#include "esphome/core/helpers.h"
#include "esphome/core/preferences.h"
#include <memory>
#include <vector>
#include <unordered_map>
#include <unordered_set>
#ifdef USE_ESP32
#include <esp_gap_ble_api.h>
#include <esp_gatts_api.h>
namespace esphome {
namespace esp32_ble_server {
using namespace esp32_ble;
using namespace bytebuffer;
class BLEServiceComponent {
public:
virtual void on_client_connect(){};
virtual void on_client_disconnect(){};
virtual void start();
virtual void stop();
namespace BLEServerEvt {
enum EmptyEvt {
ON_CONNECT,
ON_DISCONNECT,
};
} // namespace BLEServerEvt
class BLEServer : public Component, public GATTsEventHandler, public BLEStatusEventHandler, public Parented<ESP32BLE> {
class BLEServer : public Component,
public GATTsEventHandler,
public BLEStatusEventHandler,
public Parented<ESP32BLE>,
public EventEmitter<BLEServerEvt::EmptyEvt, uint16_t> {
public:
void setup() override;
void loop() override;
@@ -44,47 +46,41 @@ class BLEServer : public Component, public GATTsEventHandler, public BLEStatusEv
void teardown();
bool is_running();
void set_manufacturer(const std::string &manufacturer) { this->manufacturer_ = manufacturer; }
void set_model(const std::string &model) { this->model_ = model; }
void set_manufacturer_data(const std::vector<uint8_t> &data) {
this->manufacturer_data_ = data;
this->restart_advertising_();
}
void create_service(ESPBTUUID uuid, bool advertise = false, uint16_t num_handles = 15, uint8_t inst_id = 0);
void remove_service(ESPBTUUID uuid);
BLEService *get_service(ESPBTUUID uuid);
BLEService *create_service(ESPBTUUID uuid, bool advertise = false, uint16_t num_handles = 15);
void remove_service(ESPBTUUID uuid, uint8_t inst_id = 0);
BLEService *get_service(ESPBTUUID uuid, uint8_t inst_id = 0);
void enqueue_start_service(BLEService *service) { this->services_to_start_.push_back(service); }
void set_device_information_service(BLEService *service) { this->device_information_service_ = service; }
esp_gatt_if_t get_gatts_if() { return this->gatts_if_; }
uint32_t get_connected_client_count() { return this->connected_clients_; }
const std::unordered_map<uint16_t, void *> &get_clients() { return this->clients_; }
uint32_t get_connected_client_count() { return this->clients_.size(); }
const std::unordered_set<uint16_t> &get_clients() { return this->clients_; }
void gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if,
esp_ble_gatts_cb_param_t *param) override;
void ble_before_disabled_event_handler() override;
void register_service_component(BLEServiceComponent *component) { this->service_components_.push_back(component); }
protected:
bool create_device_characteristics_();
static std::string get_service_key(ESPBTUUID uuid, uint8_t inst_id);
void restart_advertising_();
void add_client_(uint16_t conn_id, void *client) { this->clients_.emplace(conn_id, client); }
bool remove_client_(uint16_t conn_id) { return this->clients_.erase(conn_id) > 0; }
void add_client_(uint16_t conn_id) { this->clients_.insert(conn_id); }
void remove_client_(uint16_t conn_id) { this->clients_.erase(conn_id); }
std::string manufacturer_;
optional<std::string> model_;
std::vector<uint8_t> manufacturer_data_;
std::vector<uint8_t> manufacturer_data_{};
esp_gatt_if_t gatts_if_{0};
bool registered_{false};
uint32_t connected_clients_{0};
std::unordered_map<uint16_t, void *> clients_;
std::unordered_map<std::string, BLEService *> services_;
BLEService *device_information_service_;
std::vector<BLEServiceComponent *> service_components_;
std::unordered_set<uint16_t> clients_;
std::unordered_map<std::string, BLEService *> services_{};
std::vector<BLEService *> services_to_start_{};
BLEService *device_information_service_{};
enum State : uint8_t {
INIT = 0x00,

77
esphome/components/esp32_ble_server/ble_server_automations.cpp Normal file
View File

@@ -0,0 +1,77 @@
#include "ble_server_automations.h"
#ifdef USE_ESP32
namespace esphome {
namespace esp32_ble_server {
// Interface to interact with ESPHome automations and triggers
namespace esp32_ble_server_automations {
using namespace esp32_ble;
Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_characteristic_on_write_trigger(
BLECharacteristic *characteristic) {
Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger = // NOLINT(cppcoreguidelines-owning-memory)
new Trigger<std::vector<uint8_t>, uint16_t>();
characteristic->EventEmitter<BLECharacteristicEvt::VectorEvt, std::vector<uint8_t>, uint16_t>::on(
BLECharacteristicEvt::VectorEvt::ON_WRITE,
[on_write_trigger](const std::vector<uint8_t> &data, uint16_t id) { on_write_trigger->trigger(data, id); });
return on_write_trigger;
}
Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_descriptor_on_write_trigger(BLEDescriptor *descriptor) {
Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger = // NOLINT(cppcoreguidelines-owning-memory)
new Trigger<std::vector<uint8_t>, uint16_t>();
descriptor->on(
BLEDescriptorEvt::VectorEvt::ON_WRITE,
[on_write_trigger](const std::vector<uint8_t> &data, uint16_t id) { on_write_trigger->trigger(data, id); });
return on_write_trigger;
}
Trigger<uint16_t> *BLETriggers::create_server_on_connect_trigger(BLEServer *server) {
Trigger<uint16_t> *on_connect_trigger = new Trigger<uint16_t>(); // NOLINT(cppcoreguidelines-owning-memory)
server->on(BLEServerEvt::EmptyEvt::ON_CONNECT,
[on_connect_trigger](uint16_t conn_id) { on_connect_trigger->trigger(conn_id); });
return on_connect_trigger;
}
Trigger<uint16_t> *BLETriggers::create_server_on_disconnect_trigger(BLEServer *server) {
Trigger<uint16_t> *on_disconnect_trigger = new Trigger<uint16_t>(); // NOLINT(cppcoreguidelines-owning-memory)
server->on(BLEServerEvt::EmptyEvt::ON_DISCONNECT,
[on_disconnect_trigger](uint16_t conn_id) { on_disconnect_trigger->trigger(conn_id); });
return on_disconnect_trigger;
}
void BLECharacteristicSetValueActionManager::set_listener(BLECharacteristic *characteristic,
EventEmitterListenerID listener_id,
const std::function<void()> &pre_notify_listener) {
// Check if there is already a listener for this characteristic
if (this->listeners_.count(characteristic) > 0) {
// Unpack the pair listener_id, pre_notify_listener_id
auto listener_pairs = this->listeners_[characteristic];
EventEmitterListenerID old_listener_id = listener_pairs.first;
EventEmitterListenerID old_pre_notify_listener_id = listener_pairs.second;
// Remove the previous listener
characteristic->EventEmitter<BLECharacteristicEvt::EmptyEvt, uint16_t>::off(BLECharacteristicEvt::EmptyEvt::ON_READ,
old_listener_id);
// Remove the pre-notify listener
this->off(BLECharacteristicSetValueActionEvt::PRE_NOTIFY, old_pre_notify_listener_id);
}
// Create a new listener for the pre-notify event
EventEmitterListenerID pre_notify_listener_id =
this->on(BLECharacteristicSetValueActionEvt::PRE_NOTIFY,
[pre_notify_listener, characteristic](const BLECharacteristic *evt_characteristic) {
// Only call the pre-notify listener if the characteristic is the one we are interested in
if (characteristic == evt_characteristic) {
pre_notify_listener();
}
});
// Save the pair listener_id, pre_notify_listener_id to the map
this->listeners_[characteristic] = std::make_pair(listener_id, pre_notify_listener_id);
}
} // namespace esp32_ble_server_automations
} // namespace esp32_ble_server
} // namespace esphome
#endif

115
esphome/components/esp32_ble_server/ble_server_automations.h Normal file
View File

@@ -0,0 +1,115 @@
#pragma once
#include "ble_server.h"
#include "ble_characteristic.h"
#include "ble_descriptor.h"
#include "esphome/components/event_emitter/event_emitter.h"
#include "esphome/core/automation.h"
#include <vector>
#include <unordered_map>
#include <functional>
#ifdef USE_ESP32
namespace esphome {
namespace esp32_ble_server {
// Interface to interact with ESPHome actions and triggers
namespace esp32_ble_server_automations {
using namespace esp32_ble;
using namespace event_emitter;
class BLETriggers {
public:
static Trigger<std::vector<uint8_t>, uint16_t> *create_characteristic_on_write_trigger(
BLECharacteristic *characteristic);
static Trigger<std::vector<uint8_t>, uint16_t> *create_descriptor_on_write_trigger(BLEDescriptor *descriptor);
static Trigger<uint16_t> *create_server_on_connect_trigger(BLEServer *server);
static Trigger<uint16_t> *create_server_on_disconnect_trigger(BLEServer *server);
};
enum BLECharacteristicSetValueActionEvt {
PRE_NOTIFY,
};
// Class to make sure only one BLECharacteristicSetValueAction is active at a time for each characteristic
class BLECharacteristicSetValueActionManager
: public EventEmitter<BLECharacteristicSetValueActionEvt, BLECharacteristic *> {
public:
// Singleton pattern
static BLECharacteristicSetValueActionManager *get_instance() {
static BLECharacteristicSetValueActionManager instance;
return &instance;
}
void set_listener(BLECharacteristic *characteristic, EventEmitterListenerID listener_id,
const std::function<void()> &pre_notify_listener);
EventEmitterListenerID get_listener(BLECharacteristic *characteristic) {
return this->listeners_[characteristic].first;
}
void emit_pre_notify(BLECharacteristic *characteristic) {
this->emit_(BLECharacteristicSetValueActionEvt::PRE_NOTIFY, characteristic);
}
private:
std::unordered_map<BLECharacteristic *, std::pair<EventEmitterListenerID, EventEmitterListenerID>> listeners_;
};
template<typename... Ts> class BLECharacteristicSetValueAction : public Action<Ts...> {
public:
BLECharacteristicSetValueAction(BLECharacteristic *characteristic) : parent_(characteristic) {}
TEMPLATABLE_VALUE(std::vector<uint8_t>, buffer)
void set_buffer(ByteBuffer buffer) { this->set_buffer(buffer.get_data()); }
void play(Ts... x) override {
// If the listener is already set, do nothing
if (BLECharacteristicSetValueActionManager::get_instance()->get_listener(this->parent_) == this->listener_id_)
return;
// Set initial value
this->parent_->set_value(this->buffer_.value(x...));
// Set the listener for read events
this->listener_id_ = this->parent_->EventEmitter<BLECharacteristicEvt::EmptyEvt, uint16_t>::on(
BLECharacteristicEvt::EmptyEvt::ON_READ, [this, x...](uint16_t id) {
// Set the value of the characteristic every time it is read
this->parent_->set_value(this->buffer_.value(x...));
});
// Set the listener in the global manager so only one BLECharacteristicSetValueAction is set for each characteristic
BLECharacteristicSetValueActionManager::get_instance()->set_listener(
this->parent_, this->listener_id_, [this, x...]() { this->parent_->set_value(this->buffer_.value(x...)); });
}
protected:
BLECharacteristic *parent_;
EventEmitterListenerID listener_id_;
};
template<typename... Ts> class BLECharacteristicNotifyAction : public Action<Ts...> {
public:
BLECharacteristicNotifyAction(BLECharacteristic *characteristic) : parent_(characteristic) {}
void play(Ts... x) override {
// Call the pre-notify event
BLECharacteristicSetValueActionManager::get_instance()->emit_pre_notify(this->parent_);
// Notify the characteristic
this->parent_->notify();
}
protected:
BLECharacteristic *parent_;
};
template<typename... Ts> class BLEDescriptorSetValueAction : public Action<Ts...> {
public:
BLEDescriptorSetValueAction(BLEDescriptor *descriptor) : parent_(descriptor) {}
TEMPLATABLE_VALUE(std::vector<uint8_t>, buffer)
void set_buffer(ByteBuffer buffer) { this->set_buffer(buffer.get_data()); }
void play(Ts... x) override { this->parent_->set_value(this->buffer_.value(x...)); }
protected:
BLEDescriptor *parent_;
};
} // namespace esp32_ble_server_automations
} // namespace esp32_ble_server
} // namespace esphome
#endif

32
esphome/components/esp32_ble_server/ble_service.cpp
View File

@@ -52,18 +52,21 @@ void BLEService::do_create(BLEServer *server) {
esp_err_t err = esp_ble_gatts_create_service(server->get_gatts_if(), &srvc_id, this->num_handles_);
if (err != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gatts_create_service failed: %d", err);
this->init_state_ = FAILED;
this->state_ = FAILED;
return;
}
this->init_state_ = CREATING;
this->state_ = CREATING;
}
void BLEService::do_delete() {
if (this->init_state_ == DELETING || this->init_state_ == DELETED)
if (this->state_ == DELETING || this->state_ == DELETED)
return;
this->init_state_ = DELETING;
this->state_ = DELETING;
this->created_characteristic_count_ = 0;
this->last_created_characteristic_ = nullptr;
// Call all characteristics to delete
for (auto *characteristic : this->characteristics_)
characteristic->do_delete();
this->stop_();
esp_err_t err = esp_ble_gatts_delete_service(this->handle_);
if (err != ESP_OK) {
@@ -91,6 +94,7 @@ void BLEService::start() {
return;
should_start_ = true;
this->state_ = STARTING;
esp_err_t err = esp_ble_gatts_start_service(this->handle_);
if (err != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gatts_start_service failed: %d", err);
@@ -98,7 +102,6 @@ void BLEService::start() {
}
if (this->advertise_)
esp32_ble::global_ble->advertising_add_service_uuid(this->uuid_);
this->running_state_ = STARTING;
}
void BLEService::stop() {
@@ -107,9 +110,9 @@ void BLEService::stop() {
}
void BLEService::stop_() {
if (this->running_state_ == STOPPING || this->running_state_ == STOPPED)
if (this->state_ == STOPPING || this->state_ == STOPPED)
return;
this->running_state_ = STOPPING;
this->state_ = STOPPING;
esp_err_t err = esp_ble_gatts_stop_service(this->handle_);
if (err != ESP_OK) {
ESP_LOGE(TAG, "esp_ble_gatts_stop_service failed: %d", err);
@@ -119,17 +122,16 @@ void BLEService::stop_() {
esp32_ble::global_ble->advertising_remove_service_uuid(this->uuid_);
}
bool BLEService::is_created() { return this->init_state_ == CREATED; }
bool BLEService::is_failed() {
if (this->init_state_ == FAILED)
if (this->state_ == FAILED)
return true;
bool failed = false;
for (auto *characteristic : this->characteristics_)
failed |= characteristic->is_failed();
if (failed)
this->init_state_ = FAILED;
return this->init_state_ == FAILED;
this->state_ = FAILED;
return this->state_ == FAILED;
}
void BLEService::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if,
@@ -139,7 +141,7 @@ void BLEService::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t g
if (this->uuid_ == ESPBTUUID::from_uuid(param->create.service_id.id.uuid) &&
this->inst_id_ == param->create.service_id.id.inst_id) {
this->handle_ = param->create.service_handle;
this->init_state_ = CREATED;
this->state_ = CREATED;
if (this->should_start_)
this->start();
}
@@ -147,18 +149,18 @@ void BLEService::gatts_event_handler(esp_gatts_cb_event_t event, esp_gatt_if_t g
}
case ESP_GATTS_DELETE_EVT:
if (param->del.service_handle == this->handle_) {
this->init_state_ = DELETED;
this->state_ = DELETED;
}
break;
case ESP_GATTS_START_EVT: {
if (param->start.service_handle == this->handle_) {
this->running_state_ = RUNNING;
this->state_ = RUNNING;
}
break;
}
case ESP_GATTS_STOP_EVT: {
if (param->start.service_handle == this->handle_) {
this->running_state_ = STOPPED;
this->state_ = STOPPED;
}
break;
}

24
esphome/components/esp32_ble_server/ble_service.h
View File

@@ -32,6 +32,7 @@ class BLEService {
BLECharacteristic *create_characteristic(ESPBTUUID uuid, esp_gatt_char_prop_t properties);
ESPBTUUID get_uuid() { return this->uuid_; }
uint8_t get_inst_id() { return this->inst_id_; }
BLECharacteristic *get_last_created_characteristic() { return this->last_created_characteristic_; }
uint16_t get_handle() { return this->handle_; }
@@ -44,18 +45,17 @@ class BLEService {
void start();
void stop();
bool is_created();
bool is_failed();
bool is_running() { return this->running_state_ == RUNNING; }
bool is_starting() { return this->running_state_ == STARTING; }
bool is_deleted() { return this->init_state_ == DELETED; }
bool is_created() { return this->state_ == CREATED; }
bool is_running() { return this->state_ == RUNNING; }
bool is_starting() { return this->state_ == STARTING; }
bool is_deleted() { return this->state_ == DELETED; }
protected:
std::vector<BLECharacteristic *> characteristics_;
BLECharacteristic *last_created_characteristic_{nullptr};
uint32_t created_characteristic_count_{0};
BLEServer *server_;
BLEServer *server_ = nullptr;
ESPBTUUID uuid_;
uint16_t num_handles_;
uint16_t handle_{0xFFFF};
@@ -66,22 +66,18 @@ class BLEService {
bool do_create_characteristics_();
void stop_();
enum InitState : uint8_t {
enum State : uint8_t {
FAILED = 0x00,
INIT,
CREATING,
CREATING_DEPENDENTS,
CREATED,
DELETING,
DELETED,
} init_state_{INIT};
enum RunningState : uint8_t {
STARTING,
RUNNING,
STOPPING,
STOPPED,
} running_state_{STOPPED};
DELETING,
DELETED,
} state_{INIT};
};
} // namespace esp32_ble_server

45
esphome/components/esp32_ble_tracker/__init__.py
View File

@@ -1,9 +1,13 @@
import re
from esphome import automation
import esphome.codegen as cg
from esphome.components import esp32_ble
from esphome.components.esp32 import add_idf_sdkconfig_option
from esphome.components.esp32_ble import (
bt_uuid,
bt_uuid16_format,
bt_uuid32_format,
bt_uuid128_format,
)
import esphome.config_validation as cv
from esphome.const import (
CONF_ACTIVE,
@@ -86,43 +90,6 @@ def validate_scan_parameters(config):
return config
bt_uuid16_format = "XXXX"
bt_uuid32_format = "XXXXXXXX"
bt_uuid128_format = "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX"
def bt_uuid(value):
in_value = cv.string_strict(value)
value = in_value.upper()
if len(value) == len(bt_uuid16_format):
pattern = re.compile("^[A-F|0-9]{4,}$")
if not pattern.match(value):
raise cv.Invalid(
f"Invalid hexadecimal value for 16 bit UUID format: '{in_value}'"
)
return value
if len(value) == len(bt_uuid32_format):
pattern = re.compile("^[A-F|0-9]{8,}$")
if not pattern.match(value):
raise cv.Invalid(
f"Invalid hexadecimal value for 32 bit UUID format: '{in_value}'"
)
return value
if len(value) == len(bt_uuid128_format):
pattern = re.compile(
"^[A-F|0-9]{8,}-[A-F|0-9]{4,}-[A-F|0-9]{4,}-[A-F|0-9]{4,}-[A-F|0-9]{12,}$"
)
if not pattern.match(value):
raise cv.Invalid(
f"Invalid hexadecimal value for 128 UUID format: '{in_value}'"
)
return value
raise cv.Invalid(
f"Service UUID must be in 16 bit '{bt_uuid16_format}', 32 bit '{bt_uuid32_format}', or 128 bit '{bt_uuid128_format}' format"
)
def as_hex(value):
return cg.RawExpression(f"0x{value}ULL")

10
esphome/components/esp32_improv/__init__.py
View File

@@ -1,6 +1,6 @@
from esphome import automation
import esphome.codegen as cg
from esphome.components import binary_sensor, esp32_ble_server, output
from esphome.components import binary_sensor, output
import esphome.config_validation as cv
from esphome.const import CONF_ID, CONF_ON_STATE, CONF_TRIGGER_ID
@@ -24,9 +24,7 @@ Error = improv_ns.enum("Error")
State = improv_ns.enum("State")
esp32_improv_ns = cg.esphome_ns.namespace("esp32_improv")
ESP32ImprovComponent = esp32_improv_ns.class_(
"ESP32ImprovComponent", cg.Component, esp32_ble_server.BLEServiceComponent
)
ESP32ImprovComponent = esp32_improv_ns.class_("ESP32ImprovComponent", cg.Component)
ESP32ImprovProvisionedTrigger = esp32_improv_ns.class_(
"ESP32ImprovProvisionedTrigger", automation.Trigger.template()
)
@@ -47,7 +45,6 @@ ESP32ImprovStoppedTrigger = esp32_improv_ns.class_(
CONFIG_SCHEMA = cv.Schema(
{
cv.GenerateID(): cv.declare_id(ESP32ImprovComponent),
cv.GenerateID(CONF_BLE_SERVER_ID): cv.use_id(esp32_ble_server.BLEServer),
cv.Required(CONF_AUTHORIZER): cv.Any(
cv.none, cv.use_id(binary_sensor.BinarySensor)
),
@@ -100,9 +97,6 @@ async def to_code(config):
var = cg.new_Pvariable(config[CONF_ID])
await cg.register_component(var, config)
ble_server = await cg.get_variable(config[CONF_BLE_SERVER_ID])
cg.add(ble_server.register_service_component(var))
cg.add_define("USE_IMPROV")
cg.add_library("improv/Improv", "1.2.4")

39
esphome/components/esp32_improv/esp32_improv_component.cpp
View File

@@ -4,12 +4,15 @@
#include "esphome/components/esp32_ble_server/ble_2902.h"
#include "esphome/core/application.h"
#include "esphome/core/log.h"
#include "esphome/components/bytebuffer/bytebuffer.h"
#ifdef USE_ESP32
namespace esphome {
namespace esp32_improv {
using namespace bytebuffer;
static const char *const TAG = "esp32_improv.component";
static const char *const ESPHOME_MY_LINK = "https://my.home-assistant.io/redirect/config_flow_start?domain=esphome";
@@ -26,6 +29,8 @@ void ESP32ImprovComponent::setup() {
});
}
#endif
global_ble_server->on(BLEServerEvt::EmptyEvt::ON_DISCONNECT,
[this](uint16_t conn_id) { this->set_error_(improv::ERROR_NONE); });
}
void ESP32ImprovComponent::setup_characteristics() {
@@ -40,11 +45,12 @@ void ESP32ImprovComponent::setup_characteristics() {
this->error_->add_descriptor(error_descriptor);
this->rpc_ = this->service_->create_characteristic(improv::RPC_COMMAND_UUID, BLECharacteristic::PROPERTY_WRITE);
this->rpc_->on_write([this](const std::vector<uint8_t> &data) {
if (!data.empty()) {
this->incoming_data_.insert(this->incoming_data_.end(), data.begin(), data.end());
}
});
this->rpc_->EventEmitter<BLECharacteristicEvt::VectorEvt, std::vector<uint8_t>, uint16_t>::on(
BLECharacteristicEvt::VectorEvt::ON_WRITE, [this](const std::vector<uint8_t> &data, uint16_t id) {
if (!data.empty()) {
this->incoming_data_.insert(this->incoming_data_.end(), data.begin(), data.end());
}
});
BLEDescriptor *rpc_descriptor = new BLE2902();
this->rpc_->add_descriptor(rpc_descriptor);
@@ -62,7 +68,7 @@ void ESP32ImprovComponent::setup_characteristics() {
if (this->status_indicator_ != nullptr)
capabilities |= improv::CAPABILITY_IDENTIFY;
#endif
this->capabilities_->set_value(capabilities);
this->capabilities_->set_value(ByteBuffer::wrap(capabilities));
this->setup_complete_ = true;
}
@@ -80,8 +86,7 @@ void ESP32ImprovComponent::loop() {
if (this->service_ == nullptr) {
// Setup the service
ESP_LOGD(TAG, "Creating Improv service");
global_ble_server->create_service(ESPBTUUID::from_raw(improv::SERVICE_UUID), true);
this->service_ = global_ble_server->get_service(ESPBTUUID::from_raw(improv::SERVICE_UUID));
this->service_ = global_ble_server->create_service(ESPBTUUID::from_raw(improv::SERVICE_UUID), true);
this->setup_characteristics();
}
@@ -93,15 +98,15 @@ void ESP32ImprovComponent::loop() {
case improv::STATE_STOPPED:
this->set_status_indicator_state_(false);
if (this->service_->is_created() && this->should_start_ && this->setup_complete_) {
if (this->service_->is_running()) {
if (this->should_start_ && this->setup_complete_) {
if (this->service_->is_created()) {
this->service_->start();
} else if (this->service_->is_running()) {
esp32_ble::global_ble->advertising_start();
this->set_state_(improv::STATE_AWAITING_AUTHORIZATION);
this->set_error_(improv::ERROR_NONE);
ESP_LOGD(TAG, "Service started!");
} else {
this->service_->start();
}
}
break;
@@ -199,8 +204,7 @@ void ESP32ImprovComponent::set_state_(improv::State state) {
ESP_LOGV(TAG, "Setting state: %d", state);
this->state_ = state;
if (this->status_->get_value().empty() || this->status_->get_value()[0] != state) {
uint8_t data[1]{state};
this->status_->set_value(data, 1);
this->status_->set_value(ByteBuffer::wrap(static_cast<uint8_t>(state)));
if (state != improv::STATE_STOPPED)
this->status_->notify();
}
@@ -232,15 +236,14 @@ void ESP32ImprovComponent::set_error_(improv::Error error) {
ESP_LOGE(TAG, "Error: %d", error);
}
if (this->error_->get_value().empty() || this->error_->get_value()[0] != error) {
uint8_t data[1]{error};
this->error_->set_value(data, 1);
this->error_->set_value(ByteBuffer::wrap(static_cast<uint8_t>(error)));
if (this->state_ != improv::STATE_STOPPED)
this->error_->notify();
}
}
void ESP32ImprovComponent::send_response_(std::vector<uint8_t> &response) {
this->rpc_response_->set_value(response);
this->rpc_response_->set_value(ByteBuffer::wrap(response));
if (this->state_ != improv::STATE_STOPPED)
this->rpc_response_->notify();
}
@@ -339,8 +342,6 @@ void ESP32ImprovComponent::on_wifi_connect_timeout_() {
wifi::global_wifi_component->clear_sta();
}
void ESP32ImprovComponent::on_client_disconnect() { this->set_error_(improv::ERROR_NONE); };
ESP32ImprovComponent *global_improv_component = nullptr; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
} // namespace esp32_improv

7
esphome/components/esp32_improv/esp32_improv_component.h
View File

@@ -32,18 +32,17 @@ namespace esp32_improv {
using namespace esp32_ble_server;
class ESP32ImprovComponent : public Component, public BLEServiceComponent {
class ESP32ImprovComponent : public Component {
public:
ESP32ImprovComponent();
void dump_config() override;
void loop() override;
void setup() override;
void setup_characteristics();
void on_client_disconnect() override;
float get_setup_priority() const override;
void start() override;
void stop() override;
void start();
void stop();
bool is_active() const { return this->state_ != improv::STATE_STOPPED; }
#ifdef USE_ESP32_IMPROV_STATE_CALLBACK

5
esphome/components/event_emitter/__init__.py Normal file
View File

@@ -0,0 +1,5 @@
CODEOWNERS = ["@Rapsssito"]
# Allows event_emitter to be configured in yaml, to allow use of the C++ api.
CONFIG_SCHEMA = {}

14
esphome/components/event_emitter/event_emitter.cpp Normal file
View File

@@ -0,0 +1,14 @@
#include "event_emitter.h"
namespace esphome {
namespace event_emitter {
static const char *const TAG = "event_emitter";
void raise_event_emitter_full_error() {
ESP_LOGE(TAG, "EventEmitter has reached the maximum number of listeners for event");
ESP_LOGW(TAG, "Removing listener to make space for new listener");
}
} // namespace event_emitter
} // namespace esphome

63
esphome/components/event_emitter/event_emitter.h Normal file
View File

@@ -0,0 +1,63 @@
#pragma once
#include <unordered_map>
#include <vector>
#include <functional>
#include <limits>
#include "esphome/core/log.h"
namespace esphome {
namespace event_emitter {
using EventEmitterListenerID = uint32_t;
void raise_event_emitter_full_error();
// EventEmitter class that can emit events with a specific name (it is highly recommended to use an enum class for this)
// and a list of arguments. Supports multiple listeners for each event.
template<typename EvtType, typename... Args> class EventEmitter {
public:
EventEmitterListenerID on(EvtType event, std::function<void(Args...)> listener) {
EventEmitterListenerID listener_id = get_next_id_(event);
listeners_[event][listener_id] = listener;
return listener_id;
}
void off(EvtType event, EventEmitterListenerID id) {
if (listeners_.count(event) == 0)
return;
listeners_[event].erase(id);
}
protected:
void emit_(EvtType event, Args... args) {
if (listeners_.count(event) == 0)
return;
for (const auto &listener : listeners_[event]) {
listener.second(args...);
}
}
EventEmitterListenerID get_next_id_(EvtType event) {
// Check if the map is full
if (listeners_[event].size() == std::numeric_limits<EventEmitterListenerID>::max()) {
// Raise an error if the map is full
raise_event_emitter_full_error();
off(event, 0);
return 0;
}
// Get the next ID for the given event.
EventEmitterListenerID next_id = (current_id_ + 1) % std::numeric_limits<EventEmitterListenerID>::max();
while (listeners_[event].count(next_id) > 0) {
next_id = (next_id + 1) % std::numeric_limits<EventEmitterListenerID>::max();
}
current_id_ = next_id;
return current_id_;
}
private:
std::unordered_map<EvtType, std::unordered_map<EventEmitterListenerID, std::function<void(Args...)>>> listeners_;
EventEmitterListenerID current_id_ = 0;
};
} // namespace event_emitter
} // namespace esphome

1
esphome/const.py
View File

@@ -530,6 +530,7 @@ CONF_NETWORKS = "networks"
CONF_NEW_PASSWORD = "new_password"
CONF_NITROGEN_DIOXIDE = "nitrogen_dioxide"
CONF_NOISE_LEVEL = "noise_level"
CONF_NOTIFY = "notify"
CONF_NUM_ATTEMPTS = "num_attempts"
CONF_NUM_CHANNELS = "num_channels"
CONF_NUM_CHIPS = "num_chips"

65
tests/components/esp32_ble_server/common.yaml
View File

@@ -1,3 +1,66 @@
esp32_ble_server:
id: ble
id: ble_server
manufacturer_data: [0x72, 0x4, 0x00, 0x23]
manufacturer: ESPHome
model: Test
on_connect:
- lambda: |-
ESP_LOGD("BLE", "Connection from %d", id);
on_disconnect:
- lambda: |-
ESP_LOGD("BLE", "Disconnection from %d", id);
services:
- uuid: 2a24b789-7aab-4535-af3e-ee76a35cc12d
advertise: false
characteristics:
- id: test_notify_characteristic
description: "Notify characteristic"
uuid: cad48e28-7fbe-41cf-bae9-d77a6c233423
read: true
notify: true
value: [1, 2, 3, 4]
descriptors:
- uuid: cad48e28-7fbe-41cf-bae9-d77a6c111111
on_write:
logger.log:
format: "Descriptor write id %u, data %s"
args: [id, 'format_hex_pretty(x.data(), x.size()).c_str()']
value:
data: "123.1"
type: float
endianness: BIG
- uuid: 2a24b789-7a1b-4535-af3e-ee76a35cc42d
advertise: false
characteristics:
- id: test_change_characteristic
uuid: 2a24b789-7a1b-4535-af3e-ee76a35cc11c
read: true
value:
data: "Initial"
string_encoding: utf-8
description: Change characteristic
descriptors:
- uuid: 0x4414
id: test_change_descriptor
value: "Initial descriptor value"
- uuid: 0x2312
value:
data: 0x12
type: uint16_t
on_write:
- lambda: |-
ESP_LOGD("BLE", "Descriptor received: %s from %d", std::string(x.begin(), x.end()).c_str(), id);
- uuid: 2a24b789-7a1b-4535-af3e-ee76a35cc99a
write: true
on_write:
then:
- lambda: |-
ESP_LOGD("BLE", "Characteristic received: %s from %d", std::string(x.begin(), x.end()).c_str(), id);
- ble_server.characteristic.set_value:
id: test_change_characteristic
value: !lambda 'return bytebuffer::ByteBuffer::wrap({0x00, 0x01, 0x02}).get_data();'
- ble_server.characteristic.notify:
id: test_notify_characteristic
- ble_server.descriptor.set_value:
id: test_change_descriptor
value: !lambda return bytebuffer::ByteBuffer::wrap({0x03, 0x04, 0x05}).get_data();