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Move some I2C logic out of header file (#4839)

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Carson Full 2023-05-16 23:32:20 -05:00 committed by GitHub
parent c5a45645a6
commit 77695aa55b
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 27 additions and 21 deletions
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24
esphome/components/i2c/i2c.cpp
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@ -7,6 +7,30 @@ namespace i2c {
static const char *const TAG = "i2c"; static const char *const TAG = "i2c";
ErrorCode I2CDevice::read_register(uint8_t a_register, uint8_t *data, size_t len, bool stop) {
ErrorCode err = this->write(&a_register, 1, stop);
if (err != ERROR_OK)
return err;
return bus_->read(address_, data, len);
}
ErrorCode I2CDevice::write_register(uint8_t a_register, const uint8_t *data, size_t len, bool stop) {
WriteBuffer buffers[2];
buffers[0].data = &a_register;
buffers[0].len = 1;
buffers[1].data = data;
buffers[1].len = len;
return bus_->writev(address_, buffers, 2, stop);
}
bool I2CDevice::read_bytes_16(uint8_t a_register, uint16_t *data, uint8_t len) {
if (read_register(a_register, reinterpret_cast<uint8_t *>(data), len * 2) != ERROR_OK)
return false;
for (size_t i = 0; i < len; i++)
data[i] = i2ctohs(data[i]);
return true;
}
bool I2CDevice::write_bytes_16(uint8_t a_register, const uint16_t *data, uint8_t len) { bool I2CDevice::write_bytes_16(uint8_t a_register, const uint16_t *data, uint8_t len) {
// we have to copy in order to be able to change byte order // we have to copy in order to be able to change byte order
std::unique_ptr<uint16_t[]> temp{new uint16_t[len]}; std::unique_ptr<uint16_t[]> temp{new uint16_t[len]};

24
esphome/components/i2c/i2c.h
View File

@ -46,22 +46,10 @@ class I2CDevice {
I2CRegister reg(uint8_t a_register) { return {this, a_register}; } I2CRegister reg(uint8_t a_register) { return {this, a_register}; }
ErrorCode read(uint8_t *data, size_t len) { return bus_->read(address_, data, len); } ErrorCode read(uint8_t *data, size_t len) { return bus_->read(address_, data, len); }
ErrorCode read_register(uint8_t a_register, uint8_t *data, size_t len, bool stop = true) { ErrorCode read_register(uint8_t a_register, uint8_t *data, size_t len, bool stop = true);
ErrorCode err = this->write(&a_register, 1, stop);
if (err != ERROR_OK)
return err;
return this->read(data, len);
}
ErrorCode write(const uint8_t *data, uint8_t len, bool stop = true) { return bus_->write(address_, data, len, stop); } ErrorCode write(const uint8_t *data, uint8_t len, bool stop = true) { return bus_->write(address_, data, len, stop); }
ErrorCode write_register(uint8_t a_register, const uint8_t *data, size_t len, bool stop = true) { ErrorCode write_register(uint8_t a_register, const uint8_t *data, size_t len, bool stop = true);
WriteBuffer buffers[2];
buffers[0].data = &a_register;
buffers[0].len = 1;
buffers[1].data = data;
buffers[1].len = len;
return bus_->writev(address_, buffers, 2, stop);
}
// Compat APIs // Compat APIs
@ -85,13 +73,7 @@ class I2CDevice {
return res; return res;
} }
bool read_bytes_16(uint8_t a_register, uint16_t *data, uint8_t len) { bool read_bytes_16(uint8_t a_register, uint16_t *data, uint8_t len);
if (read_register(a_register, reinterpret_cast<uint8_t *>(data), len * 2) != ERROR_OK)
return false;
for (size_t i = 0; i < len; i++)
data[i] = i2ctohs(data[i]);
return true;
}
bool read_byte(uint8_t a_register, uint8_t *data, bool stop = true) { bool read_byte(uint8_t a_register, uint8_t *data, bool stop = true) {
return read_register(a_register, data, 1, stop) == ERROR_OK; return read_register(a_register, data, 1, stop) == ERROR_OK;