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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_esp32.go
+3 -3
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@@ -354,7 +354,7 @@ type SPIConfig struct {
}
// Configure and make the SPI peripheral ready to use.
func (spi SPI) Configure(config SPIConfig) error {
func (spi *SPI) Configure(config SPIConfig) error {
if config.Frequency == 0 {
config.Frequency = 4e6 // default to 4MHz
}
@@ -445,7 +445,7 @@ func (spi SPI) Configure(config SPIConfig) error {
// Transfer writes/reads a single byte using the SPI interface. If you need to
// transfer larger amounts of data, Tx will be faster.
func (spi SPI) Transfer(w byte) (byte, error) {
func (spi *SPI) Transfer(w byte) (byte, error) {
spi.Bus.MISO_DLEN.Set(7 << esp.SPI_MISO_DLEN_USR_MISO_DBITLEN_Pos)
spi.Bus.MOSI_DLEN.Set(7 << esp.SPI_MOSI_DLEN_USR_MOSI_DBITLEN_Pos)
@@ -464,7 +464,7 @@ func (spi SPI) Transfer(w byte) (byte, error) {
// interface, there must always be the same number of bytes written as bytes read.
// This is accomplished by sending zero bits if r is bigger than w or discarding
// the incoming data if w is bigger than r.
func (spi SPI) Tx(w, r []byte) error {
func (spi *SPI) Tx(w, r []byte) error {
toTransfer := len(w)
if len(r) > toTransfer {
toTransfer = len(r)