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40 lines
940 B
C++
40 lines
940 B
C++
#include "mcp23017.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace mcp23017 {
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static const char *const TAG = "mcp23017";
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void MCP23017::setup() {
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ESP_LOGCONFIG(TAG, "Setting up MCP23017...");
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uint8_t iocon;
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if (!this->read_reg(mcp23x17_base::MCP23X17_IOCONA, &iocon)) {
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this->mark_failed();
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return;
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}
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if (this->open_drain_ints_) {
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// enable open-drain interrupt pins, 3.3V-safe
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this->write_reg(mcp23x17_base::MCP23X17_IOCONA, 0x04);
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this->write_reg(mcp23x17_base::MCP23X17_IOCONB, 0x04);
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}
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}
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void MCP23017::dump_config() { ESP_LOGCONFIG(TAG, "MCP23017:"); }
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bool MCP23017::read_reg(uint8_t reg, uint8_t *value) {
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if (this->is_failed())
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return false;
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return this->read_byte(reg, value);
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}
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bool MCP23017::write_reg(uint8_t reg, uint8_t value) {
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if (this->is_failed())
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return false;
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return this->write_byte(reg, value);
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}
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} // namespace mcp23017
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} // namespace esphome
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