defmodule Grizzly.Supervisor do
@moduledoc """
Supervisor for running the Grizzly runtime.
The Grizzly runtime handles command processing, command error isolation,
management of adding and removing devices, management of firmware updates,
and managing the underlining `zipgateway` binary.
If you are just using all the default options you can add the supervisor to
your application's supervision tree like so:
```
children = [
Grizzly.Supervisor
]
```
The default configuration will look for the Z-Wave controller on the serial
device `/dev/ttyUSB0`, however if you are using a different serial device
you can configure this.
```
children = [
{Grizzly.Supervisor, [serial_port: <serial_port>]}
]
```
`Grizzly` will try to run and manage the `zipgateway` binary for you. If
don't want `Grizzly` to do this you can configure `Grizzly` to not run
`zipgateway`.
```
children = [
{Grizzly.Supervisor, [run_zipgateway: false]}
]
```
See the type docs for `Grizzly.Supervisor.arg()` to learn more about the
various configuration options.
"""
use Supervisor
alias Grizzly.Options
alias Grizzly.ZIPGateway.ReadyChecker
@typedoc """
The RF region code you want the Z-Wave controller to operate at.
* `:eu` - Europe
* `:us` - US
* `:anz` - Australia & New Zealand
* `:hk` - Hong Kong
* `:id` - India
* `:il` - Israel
* `:ru` - Russia
* `:cn` - China
* `:us_lr`- US long range
* `:jp` - Japan
* `:kr` - Korea
"""
@type rf_region() ::
:eu
| :us
| :anz
| :hk
| :id
| :il
| :ru
| :cn
| :us_lr
| :jp
| :kr
@typedoc """
Arguments for running `Grizzly.Supervisor`
- `:run_zipgateway` - boolean flag to set if Grizzly should be running and
supervising the `zipgateway` binary. This is useful if you have local
`zipgateway` running prior to Grizzly running. Default true.
- `:serial_port` - The serial the Z-Wave controller is is connected to.
Defaults to `"/dev/ttyUSB0"`
- `:zipgateway_binary` - the path the zipgateway binary. Defaults to
`"/usr/sbin/zipgateway`
- `:zipgateway_config_path` - the path write the zipgateway config file.
Default to `"/tmp/zipgateway.cfg"`
- `:on_ready` - Module, function, args to run after Grizzly can establish
that zipgateway is up and running. If not passed nothing will be called.
Defaults to `nil`.
- `:transport` - a module that implements the `Grizzly.Transport` behaviour.
Defaults to `Grizzly.Transports.DTLS`
- `:zipgateway_port` - the port number of the Z/IP Gateway server. Defaults 41230.
- `:manufacturer_id` - the manufacturer id given to you by the Z-Wave
Alliance
- `:hardware_version` - the hardware version of the hub
- `:product_id` - the product id of your hub
- `:product_type` - the type of product the controller is
- `:serial_log` - path to out but the serial log, useful for advanced
debugging
- `:tun_script` - a path to a custom tun script if the default one does not
work for your system
- `:port` - port for zipgateway to run its server one. Defaults to `41230`
- `:lan_ip` - the IP address of the LAN network. That is the network between
the controlling machine and the Z-Wave network. Defaults to the default
Z/IP LAN ip.
- `:pan_ip` - the IP for the Z-Wave private network. That is the devices IP
addresses. Defaults to the default Z/IP Gateway PAN ip.
- `:inclusion_handler` - a module that implements the `Grizzly.InclusionHandler`
behaviour. This is optional.
- `:firmware_update_handler` - a module that implements the
`Grizzly.FirmwareUpdateHandler` behaviour. This is optional.
- `:unsolicited_destination` - configure the ip address and port number for
the unsolicited destination server.
- `:unsolicited_data_path` - A path to the directory where the unsolicited
server should persist data (defaults to `/root`)
- `:database_file` - `zipgateway` >= 7.14.2 uses an sqlite database to store
information about the Z-Wave network. This will default to
"/data/zipgateway.db".
- `:eeprom_file` - `zipgateway` < 7.14.2 uses an eeprom file to store
information about the Z-Wave network. This will default to
"/data/zipeeprom.dat".
- `:indicator_handler` - A function to run when an `Grizzly.Indicator.event()`
is received from `zipgateway`. The function should accept an event and
return `:ok`.
- `:rf_region` - Specify the RF region to be used by `zipgateway`
- `:power_level` - A tuple where the first item is the normal TX power level
and the second item is the measured 0dBm power configuration. See Silabs
INS14664 (MaxPowerCalc) spreadsheet to figure out the power numbers.
For the most part the defaults should work out of the box. However, the
`serial_port` argument is the most likely argument that will need to be
passed in has it is very much hardware dependent.
"""
@type arg() ::
{:run_zipgateway, boolean()}
| {:serial_port, String.t()}
| {:zipgateway_binary, String.t()}
| {:zipgateway_config_path, Path.t()}
| {:on_ready, mfa()}
| {:transport, module()}
| {:zipgateway_port, :inet.port_number()}
| {:manufacturer_id, non_neg_integer()}
| {:hardware_version, byte()}
| {:product_id, byte()}
| {:product_type, byte()}
| {:serial_log, Path.t()}
| {:tun_script, Path.t()}
| {:lan_ip, :inet.ip_address()}
| {:pan_ip, :inet.ip_address()}
| {:inclusion_handler, Grizzly.handler()}
| {:firmware_update_handler, Grizzly.handler()}
| {:unsolicited_destination, {:inet.ip_address(), :inet.port_number()}}
| {:unsolicited_data_path, Path.t()}
| {:eeprom_file, Path.t()}
| {:database_file, Path.t()}
| {:indicator_handler, (Grizzly.Indicator.event() -> :ok)}
| {:rf_region, rf_region()}
| {:power_level, {tx_power(), measured_power()}}
@typedoc """
The power level used when transmitting frames at normal power
See Silabs INS14664 (MaxPowerCalc) spreadsheet to figure out tx power levels.
"""
@type tx_power() :: non_neg_integer()
@typedoc """
The output power measured from the antenna when the `tx_power()` is set to 0dBm
"""
@type measured_power() :: integer()
@doc """
Start the Grizzly.Supervisor
"""
@spec start_link([arg()]) :: Supervisor.on_start()
def start_link(init_args) do
Supervisor.start_link(__MODULE__, init_args, name: __MODULE__)
end
@impl Supervisor
def init(init_args) do
Supervisor.init(children(init_args), strategy: :one_for_one)
end
defp children(init_args) do
options = Options.new(init_args)
[
# According to Z-Wave specification we need to have a global
# sequence number counter that starts at a random number between
# 0 and 0xFF (255)
{Grizzly.SeqNumber, Enum.random(0..255)},
Grizzly.Trace,
{Registry, [keys: :duplicate, name: Grizzly.Events.Registry]},
{Registry, [keys: :unique, name: Grizzly.ConnectionRegistry]},
{Grizzly.Associations, options},
# TODO: move unsolicited server stuff to own supervisor
Grizzly.UnsolicitedServer.Messages,
Grizzly.UnsolicitedServer.SocketSupervisor,
{Grizzly.UnsolicitedServer, options},
##########################
# Supervisor for starting connections to Z-Wave nodes
{Grizzly.Connections.Supervisor, options},
# Supervisor for starting and stopping Z-Wave inclusions
{Grizzly.Inclusions.InclusionRunnerSupervisor, options},
# Supervisor for updating firmware
{Grizzly.FirmwareUpdates.FirmwareUpdateRunnerSupervisor, options},
# Supervisor for running commands
Grizzly.Commands.CommandRunnerSupervisor
]
|> maybe_run_zipgateway_supervisor(options)
|> maybe_start_on_ready_checker(options)
end
defp maybe_run_zipgateway_supervisor(children, options) do
if options.run_zipgateway do
# Supervisor for the zipgateway binary
[{Grizzly.ZIPGateway.Supervisor, options} | children]
else
children
end
end
defp maybe_start_on_ready_checker(children, opts) do
if opts.on_ready do
children ++ [{ReadyChecker, opts.on_ready}]
else
children
end
end
end
