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refactor: use *SPI everywhere to make consistant for implementations.

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Fixes #4663 "in reverse" by making SPI a pointer everywhere, as discussed
in the comments.

Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram
2025-02-25 11:09:14 +01:00
committed by Ron Evans
parent cab3834bc9
commit 2bee29959b
31 changed files with 99 additions and 101 deletions
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src/machine/machine_atsamd21.go
+6 -6
View File
@@ -1224,7 +1224,7 @@ type SPIConfig struct {
}
// Configure is intended to setup the SPI interface.
func (spi SPI) Configure(config SPIConfig) error {
func (spi *SPI) Configure(config SPIConfig) error {
// Use default pins if not set.
if config.SCK == 0 && config.SDO == 0 && config.SDI == 0 {
config.SCK = SPI0_SCK_PIN
@@ -1346,7 +1346,7 @@ func (spi SPI) Configure(config SPIConfig) error {
}
// Transfer writes/reads a single byte using the SPI interface.
func (spi SPI) Transfer(w byte) (byte, error) {
func (spi *SPI) Transfer(w byte) (byte, error) {
// write data
spi.Bus.DATA.Set(uint32(w))
@@ -1375,7 +1375,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
// This form sends zeros, putting the result into the rx buffer. Good for reading a "result packet":
//
// spi.Tx(nil, rx)
func (spi SPI) Tx(w, r []byte) error {
func (spi *SPI) Tx(w, r []byte) error {
switch {
case w == nil:
// read only, so write zero and read a result.
@@ -1396,7 +1396,7 @@ func (spi SPI) Tx(w, r []byte) error {
return nil
}
func (spi SPI) tx(tx []byte) {
func (spi *SPI) tx(tx []byte) {
for i := 0; i < len(tx); i++ {
for !spi.Bus.INTFLAG.HasBits(sam.SERCOM_SPI_INTFLAG_DRE) {
}
@@ -1411,7 +1411,7 @@ func (spi SPI) tx(tx []byte) {
}
}
func (spi SPI) rx(rx []byte) {
func (spi *SPI) rx(rx []byte) {
spi.Bus.DATA.Set(0)
for !spi.Bus.INTFLAG.HasBits(sam.SERCOM_SPI_INTFLAG_DRE) {
}
@@ -1427,7 +1427,7 @@ func (spi SPI) rx(rx []byte) {
rx[len(rx)-1] = byte(spi.Bus.DATA.Get())
}
func (spi SPI) txrx(tx, rx []byte) {
func (spi *SPI) txrx(tx, rx []byte) {
spi.Bus.DATA.Set(uint32(tx[0]))
for !spi.Bus.INTFLAG.HasBits(sam.SERCOM_SPI_INTFLAG_DRE) {
}