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Code Issues Releases Wiki Activity

Partially revert make SPI CS pin optional (#1187)

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This commit is contained in:
Otto Winter
2020-07-25 14:05:31 +02:00
committed by GitHub
parent 62468198d6
commit 275c12150e
7 changed files with 19 additions and 18 deletions
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6
esphome/components/spi/__init__.py
View File

@@ -34,15 +34,15 @@ def to_code(config):
cg.add(var.set_mosi(mosi))
def spi_device_schema(CS_PIN_required=False):
def spi_device_schema(cs_pin_required=True):
"""Create a schema for an SPI device.
:param CS_PIN_required: If true, make the CS_PIN required in the config.
:param cs_pin_required: If true, make the CS_PIN required in the config.
:return: The SPI device schema, `extend` this in your config schema.
"""
schema = {
cv.GenerateID(CONF_SPI_ID): cv.use_id(SPIComponent),
}
if CS_PIN_required:
if cs_pin_required:
schema[cv.Required(CONF_CS_PIN)] = pins.gpio_output_pin_schema
else:
schema[cv.Optional(CONF_CS_PIN)] = pins.gpio_output_pin_schema

20
esphome/components/spi/spi.h
View File

@@ -127,18 +127,20 @@ class SPIComponent : public Component {
template<SPIBitOrder BIT_ORDER, SPIClockPolarity CLOCK_POLARITY, SPIClockPhase CLOCK_PHASE, uint32_t DATA_RATE>
void enable(GPIOPin *cs) {
if (cs) {
if (cs != nullptr) {
SPIComponent::debug_enable(cs->get_pin());
}
if (this->hw_spi_ != nullptr) {
uint8_t data_mode = (uint8_t(CLOCK_POLARITY) << 1) | uint8_t(CLOCK_PHASE);
SPISettings settings(DATA_RATE, BIT_ORDER, data_mode);
this->hw_spi_->beginTransaction(settings);
} else {
this->clk_->digital_write(CLOCK_POLARITY);
this->wait_cycle_ = uint32_t(F_CPU) / DATA_RATE / 2ULL;
}
if (this->hw_spi_ != nullptr) {
uint8_t data_mode = (uint8_t(CLOCK_POLARITY) << 1) | uint8_t(CLOCK_PHASE);
SPISettings settings(DATA_RATE, BIT_ORDER, data_mode);
this->hw_spi_->beginTransaction(settings);
} else {
this->clk_->digital_write(CLOCK_POLARITY);
this->wait_cycle_ = uint32_t(F_CPU) / DATA_RATE / 2ULL;
}
if (cs != nullptr) {
this->active_cs_ = cs;
this->active_cs_->digital_write(false);
}