147 lines
3.1 KiB
Go
147 lines
3.1 KiB
Go
package charger
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import (
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"errors"
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"strconv"
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"github.com/evcc-io/evcc/api"
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"github.com/evcc-io/evcc/util"
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"github.com/evcc-io/evcc/util/fritzdect"
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)
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// AVM FritzBox AHA interface specifications:
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// https://avm.de/fileadmin/user_upload/Global/Service/Schnittstellen/AHA-HTTP-Interface.pdf
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// FritzDECT charger implementation
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type FritzDECT struct {
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conn *fritzdect.Connection
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standbypower float64
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}
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func init() {
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registry.Add("fritzdect", NewFritzDECTFromConfig)
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}
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// NewFritzDECTFromConfig creates a fritzdect charger from generic config
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func NewFritzDECTFromConfig(other map[string]interface{}) (api.Charger, error) {
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cc := struct {
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URI string
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AIN string
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User string
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Password string
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StandbyPower float64
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}{}
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if err := util.DecodeOther(other, &cc); err != nil {
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return nil, err
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}
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return NewFritzDECT(cc.URI, cc.AIN, cc.User, cc.Password, cc.StandbyPower)
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}
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// NewFritzDECT creates a new connection with standbypower for charger
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func NewFritzDECT(uri, ain, user, password string, standbypower float64) (*FritzDECT, error) {
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conn, err := fritzdect.NewConnection(uri, ain, user, password)
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fd := &FritzDECT{
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conn: conn,
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standbypower: standbypower,
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}
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return fd, err
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}
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// Status implements the api.Charger interface
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func (c *FritzDECT) Status() (api.ChargeStatus, error) {
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resp, err := c.conn.ExecCmd("getswitchpresent")
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if err == nil {
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var present bool
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present, err = strconv.ParseBool(resp)
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if err == nil && !present {
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err = api.ErrNotAvailable
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}
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}
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if err != nil {
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return api.StatusNone, err
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}
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res := api.StatusB
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// static mode
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if c.standbypower < 0 {
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on, err := c.Enabled()
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if on {
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res = api.StatusC
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}
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return res, err
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}
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// standby power mode
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power, err := c.conn.CurrentPower()
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if power > c.standbypower {
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res = api.StatusC
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}
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return res, err
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}
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// Enabled implements the api.Charger interface
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func (c *FritzDECT) Enabled() (bool, error) {
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resp, err := c.conn.ExecCmd("getswitchstate")
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if err != nil {
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return false, err
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}
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if resp == "inval" {
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return false, api.ErrNotAvailable
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}
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return strconv.ParseBool(resp)
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}
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// Enable implements the api.Charger interface
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func (c *FritzDECT) Enable(enable bool) error {
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cmd := "setswitchoff"
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if enable {
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cmd = "setswitchon"
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}
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// on 0/1 - DECT Switch state off/on (empty if unknown or error)
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resp, err := c.conn.ExecCmd(cmd)
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var on bool
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if err == nil {
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on, err = strconv.ParseBool(resp)
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if err == nil && enable != on {
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err = errors.New("switch failed")
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}
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}
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return err
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}
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// MaxCurrent implements the api.Charger interface
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func (c *FritzDECT) MaxCurrent(current int64) error {
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return nil
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}
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var _ api.Meter = (*FritzDECT)(nil)
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// CurrentPower implements the api.Meter interface
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func (c *FritzDECT) CurrentPower() (float64, error) {
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power, err := c.conn.CurrentPower()
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if power < c.standbypower {
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power = 0
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}
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return power, err
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}
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var _ api.MeterEnergy = (*FritzDECT)(nil)
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// TotalEnergy implements the api.MeterEnergy interface
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func (c *FritzDECT) TotalEnergy() (float64, error) {
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return c.conn.TotalEnergy()
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}
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