53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
//go:build linux
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package sponsor
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// LICENSE
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// Copyright (c) evcc.io (andig, naltatis, premultiply)
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// This module is NOT covered by the MIT license. All rights reserved.
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import (
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i2c "github.com/d2r2/go-i2c"
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)
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const hemspro = "hemspro"
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// checkHemsPro checks if the hardware is a supported HEMS Pro device and returns sponsor subject
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func checkHemsPro() string {
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const (
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ADDR = 0b1101000 // 0x68 DS1307
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REG_TIMEDATE = 0x00
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)
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// Create new connection to I2C bus 1
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i2c, err := i2c.NewI2C(ADDR, 1)
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if err != nil {
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return ""
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}
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defer i2c.Close()
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if _, err := i2c.WriteBytes([]byte{REG_TIMEDATE}); err != nil {
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return ""
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}
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buf := make([]byte, 7)
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if n, err := i2c.ReadBytes(buf); err != nil || n != 7 {
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return ""
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}
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// I2C succeeded — verify with server
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return checkHardware(hemspro, nil)
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}
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