/
upgrade_rw.go
73 lines (62 loc) · 1.25 KB
/
upgrade_rw.go
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// Copyright © 2015-2016 Platina Systems, Inc. All rights reserved.
// Use of this source code is governed by the GPL-2 license described in the
// LICENSE file.
// Package ucd9090 provides access to the UCD9090 Power Sequencer/Monitor chip
package upgrade
import (
"net/rpc"
"unsafe"
"github.com/platinasystems/i2c"
"github.com/platinasystems/log"
)
const MAXOPS = 30
type I struct {
InUse bool
RW i2c.RW
RegOffset uint8
BusSize i2c.SMBusSize
Data [34]byte
Bus int
Addr int
Delay int
}
type R struct {
D [34]byte
E error
}
type I2cReq int
var b = [34]byte{0}
var i = I{false, i2c.RW(0), 0, 0, b, 0, 0, 0}
var j [MAXOPS]I
var r = R{b, nil}
var s [MAXOPS]R
var x int
var dummy byte
var regsPointer = unsafe.Pointer(&dummy)
var regsAddr = uintptr(unsafe.Pointer(&dummy))
var clientA *rpc.Client
var dialed int = 0
func clearJ() {
x = 0
for k := 0; k < MAXOPS; k++ {
j[k] = i
}
}
func DoI2cRpc() error {
if dialed == 0 {
client, err := rpc.DialHTTP("tcp", "127.0.0.1"+":1233")
if err != nil {
log.Print("dialing:", err)
return err
}
clientA = client
dialed = 1
}
err := clientA.Call("I2cReq.ReadWrite", &j, &s)
if err != nil {
log.Print("i2cReq error:", err)
return err
}
clearJ()
return nil
}