From b50f0d4ac09e6b93853fe7e80b018e503b1be3d8 Mon Sep 17 00:00:00 2001
From: andig <cpuidle@gmx.de>
Date: Sun, 20 Nov 2022 14:16:09 +0100
Subject: [PATCH] Add Etrel Duo (#5223)

---
 charger/etrel.go                            | 31 ++++++++++++++-------
 templates/definition/charger/etrel-duo.yaml | 22 +++++++++++++++
 templates/docs/charger/etrel-duo_0.yaml     | 14 ++++++++++
 3 files changed, 57 insertions(+), 10 deletions(-)
 create mode 100644 templates/definition/charger/etrel-duo.yaml
 create mode 100644 templates/docs/charger/etrel-duo_0.yaml

diff --git a/charger/etrel.go b/charger/etrel.go
index 9529ea809..921e969a6 100644
--- a/charger/etrel.go
+++ b/charger/etrel.go
@@ -53,6 +53,7 @@ const (
 type Etrel struct {
 	log     *util.Logger
 	conn    *modbus.Connection
+	base    uint16
 	current float32
 }
 
@@ -62,19 +63,25 @@ func init() {
 
 // NewEtrelFromConfig creates a Etrel charger from generic config
 func NewEtrelFromConfig(other map[string]interface{}) (api.Charger, error) {
-	cc := modbus.TcpSettings{
-		ID: 1,
+	cc := struct {
+		Connector int
+		modbus.TcpSettings
+	}{
+		Connector: 1,
+		TcpSettings: modbus.TcpSettings{
+			ID: 1,
+		},
 	}
 
 	if err := util.DecodeOther(other, &cc); err != nil {
 		return nil, err
 	}
 
-	return NewEtrel(cc.URI, cc.ID)
+	return NewEtrel(cc.Connector, cc.URI, cc.ID)
 }
 
 // NewEtrel creates a Etrel charger
-func NewEtrel(uri string, id uint8) (*Etrel, error) {
+func NewEtrel(connector int, uri string, id uint8) (*Etrel, error) {
 	conn, err := modbus.NewConnection(uri, "", "", 0, modbus.Tcp, id)
 	if err != nil {
 		return nil, err
@@ -93,12 +100,16 @@ func NewEtrel(uri string, id uint8) (*Etrel, error) {
 		current: 6,
 	}
 
+	if connector == 2 {
+		wb.base = 100
+	}
+
 	return wb, nil
 }
 
 // Status implements the api.Charger interface
 func (wb *Etrel) Status() (api.ChargeStatus, error) {
-	b, err := wb.conn.ReadInputRegisters(etrelRegChargeStatus, 1)
+	b, err := wb.conn.ReadInputRegisters(wb.base+etrelRegChargeStatus, 1)
 	if err != nil {
 		return api.StatusNone, err
 	}
@@ -129,7 +140,7 @@ func (wb *Etrel) Status() (api.ChargeStatus, error) {
 
 // Enabled implements the api.Charger interface
 func (wb *Etrel) Enabled() (bool, error) {
-	b, err := wb.conn.ReadInputRegisters(etrelRegTargetCurrent, 2)
+	b, err := wb.conn.ReadInputRegisters(wb.base+etrelRegTargetCurrent, 2)
 	if err != nil {
 		return false, err
 	}
@@ -151,7 +162,7 @@ func (wb *Etrel) setCurrent(current float32) error {
 	b := make([]byte, 4)
 	binary.BigEndian.PutUint32(b, math.Float32bits(current))
 
-	_, err := wb.conn.WriteMultipleRegisters(etrelRegMaxCurrent, 2, b)
+	_, err := wb.conn.WriteMultipleRegisters(wb.base+etrelRegMaxCurrent, 2, b)
 	return err
 }
 
@@ -182,7 +193,7 @@ var _ api.ChargeTimer = (*Etrel)(nil)
 
 // ChargingTime implements the api.ChargeTimer interface
 func (wb *Etrel) ChargingTime() (time.Duration, error) {
-	b, err := wb.conn.ReadInputRegisters(etrelRegChargeTime, 4)
+	b, err := wb.conn.ReadInputRegisters(wb.base+etrelRegChargeTime, 4)
 	if err != nil {
 		return 0, err
 	}
@@ -194,7 +205,7 @@ var _ api.Meter = (*Etrel)(nil)
 
 // CurrentPower implements the api.Meter interface
 func (wb *Etrel) CurrentPower() (float64, error) {
-	b, err := wb.conn.ReadInputRegisters(etrelRegPower, 2)
+	b, err := wb.conn.ReadInputRegisters(wb.base+etrelRegPower, 2)
 	if err != nil {
 		return 0, err
 	}
@@ -206,7 +217,7 @@ var _ api.ChargeRater = (*Etrel)(nil)
 
 // ChargedEnergy implements the api.ChargeRater interface
 func (wb *Etrel) ChargedEnergy() (float64, error) {
-	b, err := wb.conn.ReadInputRegisters(etrelRegSessionEnergy, 2)
+	b, err := wb.conn.ReadInputRegisters(wb.base+etrelRegSessionEnergy, 2)
 	if err != nil {
 		return 0, err
 	}
diff --git a/templates/definition/charger/etrel-duo.yaml b/templates/definition/charger/etrel-duo.yaml
new file mode 100644
index 000000000..37937a7fa
--- /dev/null
+++ b/templates/definition/charger/etrel-duo.yaml
@@ -0,0 +1,22 @@
+template: etrel-duo
+products:
+  - brand: Etrel
+    description:
+      generic: INCH Duo
+capabilities: ["mA"]
+requirements:
+  evcc: ["sponsorship"]
+  description:
+    de: Die Wallbox muss sich im "Power" Modus befinden.
+    en: The charger must be switched to "Power" charging mode.
+params:
+  - name: connector
+    default: 1
+  - name: host
+    required: true
+  - name: port
+    default: 502
+render: |
+  type: etrel
+  connector: {{ .connector }}
+  uri: {{ .host }}:{{ .port }}
diff --git a/templates/docs/charger/etrel-duo_0.yaml b/templates/docs/charger/etrel-duo_0.yaml
new file mode 100644
index 000000000..b67c292f3
--- /dev/null
+++ b/templates/docs/charger/etrel-duo_0.yaml
@@ -0,0 +1,14 @@
+product:
+  brand: Etrel
+  description: INCH Duo
+capabilities: ["mA"]
+requirements: ["sponsorship"]
+description: |
+  Die Wallbox muss sich im "Power" Modus befinden.
+render:
+  - default: |
+      type: template
+      template: etrel-duo
+      connector: 1 # Optional
+      host: 192.0.2.2 # IP-Adresse oder Hostname
+      port: 502 # Port # Optional