55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
package provider
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import (
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"strconv"
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gosunspec "github.com/andig/gosunspec"
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"github.com/evcc-io/evcc/util/modbus"
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"github.com/volkszaehler/mbmd/meters/sunspec"
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)
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var sunspecDevices = sunspecDeviceCache{
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data: make(map[string][]gosunspec.Device),
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}
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// sunspecDeviceCache is a cache for sunspec connection's device tree
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type sunspecDeviceCache struct {
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data map[string][]gosunspec.Device
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}
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func (c *sunspecDeviceCache) Get(conn *modbus.Connection) []gosunspec.Device {
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return c.data[conn.Addr()]
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}
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func (c *sunspecDeviceCache) Put(conn *modbus.Connection, devices []gosunspec.Device) {
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c.data[conn.Addr()] = devices
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}
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var sunspecSubDevices = sunspecSubDeviceCache{
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data: make(map[string][]*sunspec.SunSpec),
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}
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// sunspecSubDeviceCache is a cache for a sunspec devices's models
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type sunspecSubDeviceCache struct {
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data map[string][]*sunspec.SunSpec
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}
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func (c *sunspecSubDeviceCache) Get(conn *modbus.Connection, subDevice int) *sunspec.SunSpec {
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addr := sunspecSubdeviceAddr(conn, subDevice)
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for _, dev := range c.data[addr] {
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if dev.Descriptor().SubDevice == subDevice {
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return dev
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}
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}
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return nil
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}
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func (c *sunspecSubDeviceCache) Put(conn *modbus.Connection, subDevice int, dev *sunspec.SunSpec) {
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addr := sunspecSubdeviceAddr(conn, subDevice)
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c.data[addr] = append(c.data[addr], dev)
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}
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func sunspecSubdeviceAddr(conn *modbus.Connection, subDevice int) string {
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return conn.String() + "::" + strconv.Itoa(subDevice)
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}
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