go-embedded/embd
go-embedded/embd
1
0
Fork 0
mirror of https://github.com/kidoman/embd synced 2025-07-03 20:07:40 +02:00
Code Issues Releases Wiki Activity

spi: remove types from const declarations and added few more go docs

Browse source
This commit is contained in:
kunalpowar 2014-05-22 02:58:15 +05:30
parent 2d3dee8764
commit 32c9a96af5
2 changed files with 21 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

15
host/generic/spibus.go
View file

@ -23,9 +23,9 @@ const (
spiIOCMessage0 = 1073769216 //0x40006B00
spiIOCIncrementor = 2097152 //0x200000
defaultDelayms = uint16(0)
defaultSPIBPW = uint8(8)
defaultSPISpeed = uint32(1000000)
defaultDelayms = 0
defaultSPIBPW = 8
defaultSPISpeed = 1000000
)
type spiIOCTransfer struct {
@ -115,12 +115,11 @@ func (b *spiBus) init() error {
func (b *spiBus) setMode() error {
var mode = uint8(b.mode)
var err error
glog.V(3).Infof("spi: setting spi mode to %v", mode)
_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, b.file.Fd(), spiIOCWrMode, uintptr(unsafe.Pointer(&mode)))
if errno != 0 {
err = syscall.Errno(errno)
err := syscall.Errno(errno)
glog.V(3).Infof("spi: failed to set mode due to %v", err.Error())
return err
}
@ -129,7 +128,7 @@ func (b *spiBus) setMode() error {
}
func (b *spiBus) setSpeed() error {
speed := defaultSPISpeed
var speed uint32 = defaultSPISpeed
if b.speed > 0 {
speed = uint32(b.speed)
}
@ -148,7 +147,7 @@ func (b *spiBus) setSpeed() error {
}
func (b *spiBus) setBPW() error {
bpw := defaultSPIBPW
var bpw uint8 = defaultSPIBPW
if b.bpw > 0 {
bpw = uint8(b.bpw)
}
@ -166,7 +165,7 @@ func (b *spiBus) setBPW() error {
}
func (b *spiBus) setDelay() {
delay := defaultDelayms
var delay uint16 = defaultDelayms
if b.delayms > 0 {
delay = uint16(b.delayms)
}