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machine: hide internal pin modes

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Many pin modes are only for peripherals like SPI and PWM. Do not make
these part of the public API: the public API is the Configure method on
the peripheral, not the PinMode constant.
This commit is contained in:
Ayke van Laethem
2022-09-26 18:27:55 +02:00
parent fca2de21b1
commit 3b68f8f16a
30 changed files with 223 additions and 221 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/machine/machine_stm32_moder_gpio.go
+20 -21
View File
@@ -14,29 +14,28 @@ import (
const (
// Mode Flag
PinOutput PinMode = 0
PinInput PinMode = PinInputFloating
PinInputFloating PinMode = 1
PinInput PinMode = 1
PinInputPulldown PinMode = 2
PinInputPullup PinMode = 3
// for UART
PinModeUARTTX PinMode = 4
PinModeUARTRX PinMode = 5
pinModeUARTTX PinMode = 4
pinModeUARTRX PinMode = 5
// for I2C
PinModeI2CSCL PinMode = 6
PinModeI2CSDA PinMode = 7
pinModeI2CSCL PinMode = 6
pinModeI2CSDA PinMode = 7
// for SPI
PinModeSPICLK PinMode = 8
PinModeSPISDO PinMode = 9
PinModeSPISDI PinMode = 10
pinModeSPICLK PinMode = 8
pinModeSPISDO PinMode = 9
pinModeSPISDI PinMode = 10
// for analog/ADC
PinInputAnalog PinMode = 11
pinInputAnalog PinMode = 11
// for PWM
PinModePWMOutput PinMode = 12
pinModePWMOutput PinMode = 12
)
// Define several bitfields that have different names across chip families but
@@ -83,7 +82,7 @@ func (p Pin) ConfigureAltFunc(config PinConfig, altFunc uint8) {
switch config.Mode {
// GPIO
case PinInputFloating:
case PinInput:
port.MODER.ReplaceBits(gpioModeInput, gpioModeMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
case PinInputPulldown:
@@ -97,24 +96,24 @@ func (p Pin) ConfigureAltFunc(config PinConfig, altFunc uint8) {
port.OSPEEDR.ReplaceBits(gpioOutputSpeedHigh, gpioOutputSpeedMask, pos)
// UART
case PinModeUARTTX:
case pinModeUARTTX:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedHigh, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullUp, gpioPullMask, pos)
p.SetAltFunc(altFunc)
case PinModeUARTRX:
case pinModeUARTRX:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
p.SetAltFunc(altFunc)
// I2C
case PinModeI2CSCL:
case pinModeI2CSCL:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OTYPER.ReplaceBits(stm32.GPIO_OTYPER_OT0_OpenDrain, stm32.GPIO_OTYPER_OT0_Msk, pos/2)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedLow, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullUp, gpioPullMask, pos)
p.SetAltFunc(altFunc)
case PinModeI2CSDA:
case pinModeI2CSDA:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OTYPER.ReplaceBits(stm32.GPIO_OTYPER_OT0_OpenDrain, stm32.GPIO_OTYPER_OT0_Msk, pos/2)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedLow, gpioOutputSpeedMask, pos)
@@ -122,31 +121,31 @@ func (p Pin) ConfigureAltFunc(config PinConfig, altFunc uint8) {
p.SetAltFunc(altFunc)
// SPI
case PinModeSPICLK:
case pinModeSPICLK:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedHigh, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
p.SetAltFunc(altFunc)
case PinModeSPISDO:
case pinModeSPISDO:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedLow, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
p.SetAltFunc(altFunc)
case PinModeSPISDI:
case pinModeSPISDI:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedLow, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
p.SetAltFunc(altFunc)
// PWM
case PinModePWMOutput:
case pinModePWMOutput:
port.MODER.ReplaceBits(gpioModeAlternate, gpioModeMask, pos)
port.OSPEEDR.ReplaceBits(gpioOutputSpeedHigh, gpioOutputSpeedMask, pos)
port.PUPDR.ReplaceBits(gpioPullFloating, gpioPullMask, pos)
p.SetAltFunc(altFunc)
// ADC
case PinInputAnalog:
case pinInputAnalog:
port.MODER.ReplaceBits(gpioModeAnalog, gpioModeMask, pos)
}
}