tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-17 03:03:27 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

all: format code according to Go 1.19 rules

Browse Source 
Go 1.19 started reformatting code in a way that makes it more obvious
how it will be rendered on pkg.go.dev. It gets it almost right, but not
entirely. Therefore, I had to modify some of the comments so that they
are formatted correctly.
This commit is contained in:
Ayke van Laethem
2022-08-03 16:24:47 +02:00
committed by Ayke
parent f936125658
commit c7a23183e8
114 changed files with 509 additions and 381 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/machine/machine_rp2040_spi.go
+17 -10
View File
@@ -58,21 +58,21 @@ const _SPITimeout = 10 * 1000 // 10 ms
// This form sends the bytes in tx buffer, putting the resulting bytes read into the rx buffer.
// Note that the tx and rx buffers must be the same size:
//
// spi.Tx(tx, rx)
// spi.Tx(tx, rx)
//
// This form sends the tx buffer, ignoring the result. Useful for sending "commands" that return zeros
// until all the bytes in the command packet have been received:
//
// spi.Tx(tx, nil)
// spi.Tx(tx, nil)
//
// This form sends zeros, putting the result into the rx buffer. Good for reading a "result packet":
//
// spi.Tx(nil, rx)
// spi.Tx(nil, rx)
//
// Remark: This implementation (RP2040) allows reading into buffer with a custom repeated
// value on tx.
//
// spi.Tx([]byte{0xff}, rx) // may cause unwanted heap allocations.
// spi.Tx([]byte{0xff}, rx) // may cause unwanted heap allocations.
//
// This form sends 0xff and puts the result into rx buffer. Useful for reading from SD cards
// which require 0xff input on SI.
@@ -150,13 +150,17 @@ func (spi SPI) GetBaudRate() uint32 {
// Default baudrate of 115200 is used if Frequency == 0. Default
// word length (data bits) is 8.
// Below is a list of GPIO pins corresponding to SPI0 bus on the rp2040:
// SI : 0, 4, 17 a.k.a RX and MISO (if rp2040 is master)
// SO : 3, 7, 19 a.k.a TX and MOSI (if rp2040 is master)
// SCK: 2, 6, 18
//
// SI : 0, 4, 17 a.k.a RX and MISO (if rp2040 is master)
// SO : 3, 7, 19 a.k.a TX and MOSI (if rp2040 is master)
// SCK: 2, 6, 18
//
// SPI1 bus GPIO pins:
// SI : 8, 12
// SO : 11, 15
// SCK: 10, 14
//
// SI : 8, 12
// SO : 11, 15
// SCK: 10, 14
//
// No pin configuration is needed of SCK, SDO and SDI needed after calling Configure.
func (spi SPI) Configure(config SPIConfig) error {
const defaultBaud uint32 = 115200
@@ -217,6 +221,7 @@ func (spi SPI) setFormat(databits, mode uint8, frameFormat uint32) {
}
// reset resets SPI and waits until reset is done.
//
//go:inline
func (spi SPI) reset() {
resetVal := spi.deinit()
@@ -240,12 +245,14 @@ func (spi SPI) deinit() (resetVal uint32) {
}
// isWritable returns false if no space is available to write. True if a write is possible
//
//go:inline
func (spi SPI) isWritable() bool {
return spi.Bus.SSPSR.HasBits(rp.SPI0_SSPSR_TNF)
}
// isReadable returns true if a read is possible i.e. data is present
//
//go:inline
func (spi SPI) isReadable() bool {
return spi.Bus.SSPSR.HasBits(rp.SPI0_SSPSR_RNE)