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package linux
import (
"fmt"
"strconv"
"github.com/muka/go-bluetooth/hw/linux/btmgmt"
"github.com/muka/go-bluetooth/hw/linux/hci"
"github.com/muka/go-bluetooth/hw/linux/hciconfig"
log "github.com/sirupsen/logrus"
)
type BackendType string
const (
BackendBtmgmt BackendType = "btmgmt"
BackendHCI BackendType = "hci"
BackendHCIConfig BackendType = "hciconfig"
)
var Backend BackendType = BackendHCIConfig
type AdapterInfo struct {
AdapterID string
Address string
Type string
Enabled bool
}
// GetAdapter return status information for a controller
func GetAdapter(adapterID string) (a AdapterInfo, err error) {
list, err := GetAdapters()
if err != nil {
return a, err
}
for _, a := range list {
if a.AdapterID == adapterID {
return a, err
}
}
return a, fmt.Errorf("Adapter %s not found", adapterID)
}
// GetAdapters return a list of status information of available controllers
func GetAdapters() ([]AdapterInfo, error) {
list, err := hciconfig.GetAdapters()
if err != nil {
return nil, err
}
list1 := []AdapterInfo{}
for _, info := range list {
list1 = append(list1, AdapterInfo{
AdapterID: info.AdapterID,
Enabled: info.Enabled,
Type: info.Type,
Address: info.Address,
})
}
return list1, err
}
func Up(adapterID string) error {
status, err := GetAdapter(adapterID)
if err != nil {
return err
}
if status.Enabled {
return nil
}
if Backend == BackendHCIConfig {
_, err := hciconfig.NewHCIConfig(adapterID).Up()
return err
}
if Backend == BackendBtmgmt {
return btmgmt.NewBtMgmt(adapterID).SetPowered(true)
}
if Backend == BackendHCI {
id, err := strconv.Atoi(adapterID[3:])
if err != nil {
return err
}
return hci.Up(id)
}
return fmt.Errorf("Unsupported backend type: %s", Backend)
}
func Down(adapterID string) error {
status, err := GetAdapter(adapterID)
if err != nil {
return err
}
if !status.Enabled {
return nil
}
if Backend == BackendHCIConfig {
_, err := hciconfig.NewHCIConfig(adapterID).Down()
return err
}
if Backend == BackendBtmgmt {
return btmgmt.NewBtMgmt(adapterID).SetPowered(false)
}
if Backend == BackendHCI {
id, err := strconv.Atoi(adapterID[3:])
if err != nil {
return err
}
return hci.Down(id)
}
return fmt.Errorf("Unsupported backend type: %s", Backend)
}
func Reset(adapterID string) error {
err := Down(adapterID)
if err != nil {
log.Warnf("Down failed: %s", err)
}
return Up(adapterID)
}
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