soypat/lneto
1
0
Fork 0
mirror of https://github.com/soypat/lneto.git synced 2026-07-26 10:38:47 +00:00
Code Issues Packages Projects Releases 1 Wiki Activity

relocate phy.MDIOBitBang tinygo example to Configure method

Browse Source
This commit is contained in:
Patricio Whittingslow
2026-01-25 09:11:08 -03:00
parent 91fea9ae58
commit e83665f147
1 changed files with 10 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files
phy/mdio-bitbang.go
+10 -9
View File
@@ -19,7 +19,15 @@ const (
// MDIOBitBang provides a software defined(bitbang) MDIO/MDC management interface for PHY register access
// as the STA (Management station, this implementation) which communicates to the PHY (Physical layer device).
// Inspired by linux/v3.13.1/source/drivers/net/phy/mdio-bitbang.c
type MDIOBitBang struct {
_sendBit func(bit bool)
_getBit func() (inputBit bool)
_setDir func(output bool)
}
// Configure initializes the MDIO bit-bang interface with the given pin control callbacks.
// Below is a TinyGo oriented HAL needed to use MDIOBitBang. MDC is clock line, MDIO is data line.
// Example uses Z(high impedance) tristate level output encoding to avoid MAC/PHY simultaneous driving of data line.
//
// const mdioDelay = 340 * time.Nanosecond // MDIO spec max turnaround time
// pinMDIO.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
@@ -29,7 +37,7 @@ const (
// mdio2.Configure(func(outBit bool) {
// // sendBit: set data, clock high, clock low
// if outBit {
// pinMDIO.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
// pinMDIO.Configure(machine.PinConfig{Mode: machine.PinInputPullup}) // Z high.
// } else {
// pinMDIO.Low()
// pinMDIO.Configure(machine.PinConfig{Mode: machine.PinOutput})
@@ -53,13 +61,6 @@ const (
// pinMDIO.Configure(machine.PinConfig{Mode: machine.PinInput})
// }
// })
type MDIOBitBang struct {
_sendBit func(bit bool)
_getBit func() (inputBit bool)
_setDir func(output bool)
}
// Configure initializes the MDIO bit-bang interface with the given pin control callbacks.
func (m *MDIOBitBang) Configure(sendBit func(bit bool), getBit func() bool, setDir func(setOut bool)) {
if sendBit == nil || getBit == nil || setDir == nil {
panic("nil callback")
@@ -71,7 +72,7 @@ func (m *MDIOBitBang) Configure(sendBit func(bit bool), getBit func() bool, setD
}
func (m *MDIOBitBang) reset() {
// setting direction to output releases the bus.
// setting direction to output releases the bus. Pin idle at high impedance state when using Z mode.
m.setDir(true)
}