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all: changeover to eliminate all direct use of master/slave terminology

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Signed-off-by: deadprogram <ron@hybridgroup.com>
This commit is contained in:
deadprogram
2020-07-07 18:52:27 +02:00
committed by Ayke
parent fdaddf6917
commit d1c4ed664e
51 changed files with 576 additions and 576 deletions
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src/machine/machine_atsamd21.go
+17 -17
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@@ -648,7 +648,7 @@ func (i2c I2C) Configure(config I2CConfig) error {
i2c.Bus.SYNCBUSY.HasBits(sam.SERCOM_I2CM_SYNCBUSY_SWRST) {
}
// Set i2c master mode
// Set i2c controller mode
//SERCOM_I2CM_CTRLA_MODE( I2C_MASTER_OPERATION )
i2c.Bus.CTRLA.Set(sam.SERCOM_I2CM_CTRLA_MODE_I2C_MASTER << sam.SERCOM_I2CM_CTRLA_MODE_Pos) // |
@@ -722,7 +722,7 @@ func (i2c I2C) Tx(addr uint16, w, r []byte) error {
// wait transmission complete
for !i2c.Bus.INTFLAG.HasBits(sam.SERCOM_I2CM_INTFLAG_SB) {
// If the slave NACKS the address, the MB bit will be set.
// If the peripheral NACKS the address, the MB bit will be set.
// In that case, send a stop condition and return error.
if i2c.Bus.INTFLAG.HasBits(sam.SERCOM_I2CM_INTFLAG_MB) {
i2c.Bus.CTRLB.SetBits(wireCmdStop << sam.SERCOM_I2CM_CTRLB_CMD_Pos) // Stop condition
@@ -1074,8 +1074,8 @@ type SPI struct {
type SPIConfig struct {
Frequency uint32
SCK Pin
MOSI Pin
MISO Pin
SDO Pin
SDI Pin
LSBFirst bool
Mode uint8
}
@@ -1083,10 +1083,10 @@ type SPIConfig struct {
// Configure is intended to setup the SPI interface.
func (spi SPI) Configure(config SPIConfig) error {
// Use default pins if not set.
if config.SCK == 0 && config.MOSI == 0 && config.MISO == 0 {
if config.SCK == 0 && config.SDO == 0 && config.SDI == 0 {
config.SCK = SPI0_SCK_PIN
config.MOSI = SPI0_MOSI_PIN
config.MISO = SPI0_MISO_PIN
config.SDO = SPI0_SDO_PIN
config.SDI = SPI0_SDI_PIN
}
// set default frequency
@@ -1094,27 +1094,27 @@ func (spi SPI) Configure(config SPIConfig) error {
config.Frequency = 4000000
}
// Determine the input pinout (for MISO).
misoPinMode, misoPad, ok := findPinPadMapping(spi.SERCOM, config.MISO)
// Determine the input pinout (for SDI).
SDIPinMode, SDIPad, ok := findPinPadMapping(spi.SERCOM, config.SDI)
if !ok {
return ErrInvalidInputPin
}
dataInPinout := misoPad // mapped directly
dataInPinout := SDIPad // mapped directly
// Determine the output pinout (for MOSI/SCK).
// Determine the output pinout (for SDO/SCK).
// See table 26-7 on page 494 of the datasheet.
var dataOutPinout uint32
sckPinMode, sckPad, ok := findPinPadMapping(spi.SERCOM, config.SCK)
if !ok {
return ErrInvalidOutputPin
}
mosiPinMode, mosiPad, ok := findPinPadMapping(spi.SERCOM, config.MOSI)
SDOPinMode, SDOPad, ok := findPinPadMapping(spi.SERCOM, config.SDO)
if !ok {
return ErrInvalidOutputPin
}
switch sckPad {
case 1:
switch mosiPad {
switch SDOPad {
case 0:
dataOutPinout = 0x0
case 3:
@@ -1123,7 +1123,7 @@ func (spi SPI) Configure(config SPIConfig) error {
return ErrInvalidOutputPin
}
case 3:
switch mosiPad {
switch SDOPad {
case 2:
dataOutPinout = 0x1
case 0:
@@ -1142,8 +1142,8 @@ func (spi SPI) Configure(config SPIConfig) error {
// enable pins
config.SCK.Configure(PinConfig{Mode: sckPinMode})
config.MOSI.Configure(PinConfig{Mode: mosiPinMode})
config.MISO.Configure(PinConfig{Mode: misoPinMode})
config.SDO.Configure(PinConfig{Mode: SDOPinMode})
config.SDI.Configure(PinConfig{Mode: SDIPinMode})
// reset SERCOM
spi.Bus.CTRLA.SetBits(sam.SERCOM_SPI_CTRLA_SWRST)
@@ -1157,7 +1157,7 @@ func (spi SPI) Configure(config SPIConfig) error {
dataOrder = 1
}
// Set SPI master
// Set SPI mode to controller
spi.Bus.CTRLA.Set((sam.SERCOM_SPI_CTRLA_MODE_SPI_MASTER << sam.SERCOM_SPI_CTRLA_MODE_Pos) |
(dataOutPinout << sam.SERCOM_SPI_CTRLA_DOPO_Pos) |
(dataInPinout << sam.SERCOM_SPI_CTRLA_DIPO_Pos) |