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Code Issues Releases Wiki Activity

[spi] Restore `SPIDelegateDummy` (#8019)

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This commit is contained in:
Clyde Stubbs 2025-01-15 11:56:52 +11:00 committed by GitHub
parent e8d2ad4ce8
commit dac9768f6a
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2 changed files with 25 additions and 2 deletions
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6
esphome/components/spi/spi.cpp
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@ -7,6 +7,10 @@ namespace spi {
const char *const TAG = "spi";
SPIDelegate *const SPIDelegate::NULL_DELEGATE = // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
new SPIDelegateDummy();
// https://bugs.llvm.org/show_bug.cgi?id=48040
bool SPIDelegate::is_ready() { return true; }
GPIOPin *const NullPin::NULL_PIN = new NullPin(); // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
@ -75,6 +79,8 @@ void SPIComponent::dump_config() {
}
}
void SPIDelegateDummy::begin_transaction() { ESP_LOGE(TAG, "SPIDevice not initialised - did you call spi_setup()?"); }
uint8_t SPIDelegateBitBash::transfer(uint8_t data) { return this->transfer_(data, 8); }
void SPIDelegateBitBash::write(uint16_t data, size_t num_bits) { this->transfer_(data, num_bits); }

21
esphome/components/spi/spi.h
View File

@ -163,6 +163,8 @@ class Utility {
}
};
class SPIDelegateDummy;
// represents a device attached to an SPI bus, with a defined clock rate, mode and bit order. On Arduino this is
// a thin wrapper over SPIClass.
class SPIDelegate {
@ -248,6 +250,21 @@ class SPIDelegate {
uint32_t data_rate_{1000000};
SPIMode mode_{MODE0};
GPIOPin *cs_pin_{NullPin::NULL_PIN};
static SPIDelegate *const NULL_DELEGATE; // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
};
/**
* A dummy SPIDelegate that complains if it's used.
*/
class SPIDelegateDummy : public SPIDelegate {
public:
SPIDelegateDummy() = default;
uint8_t transfer(uint8_t data) override { return 0; }
void end_transaction() override{};
void begin_transaction() override;
};
/**
@ -365,7 +382,7 @@ class SPIClient {
virtual void spi_teardown() {
this->parent_->unregister_device(this);
this->delegate_ = nullptr;
this->delegate_ = SPIDelegate::NULL_DELEGATE;
}
bool spi_is_ready() { return this->delegate_->is_ready(); }
@ -376,7 +393,7 @@ class SPIClient {
uint32_t data_rate_{1000000};
SPIComponent *parent_{nullptr};
GPIOPin *cs_{nullptr};
SPIDelegate *delegate_{nullptr};
SPIDelegate *delegate_{SPIDelegate::NULL_DELEGATE};
};
/**