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use builtin function for readBuffer

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Signed-off-by: Mickael Gaillard <mick.gaillard@gmail.com>
This commit is contained in:
Mickael Gaillard 2020-04-26 19:35:11 +02:00
parent 3a8bb77c9b
commit 0464bd364d
1 changed files with 3 additions and 49 deletions
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52
tasmota/xsns_27_apds9960.ino
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@ -333,53 +333,6 @@ uint8_t gesture_mode = 1;
* Helper functions * Helper functions
\******************************************************************************/ \******************************************************************************/
/**
* @brief Writes a single byte to the I2C device (no register)
*
* @param[in] val the 1-byte value to write to the I2C device
* @return True if successful write operation. False otherwise.
*/
bool wireWriteByte(uint8_t val) {
Wire.beginTransmission(APDS9960_I2C_ADDR);
Wire.write(val);
if ( Wire.endTransmission() != 0 ) {
return false;
}
return true;
}
/**
* @brief Reads a block (array) of bytes from the I2C device and register
*
* @param[in] reg the register to read from
* @param[out] val pointer to the beginning of the data
* @param[in] len number of bytes to read
* @return Number of bytes read. -1 on read error.
*/
int8_t wireReadDataBlock(uint8_t reg,
uint8_t *val,
uint16_t len) {
unsigned char i = 0;
/* Indicate which register we want to read from */
if (!wireWriteByte(reg)) {
return -1;
}
/* Read block data */
Wire.requestFrom(APDS9960_I2C_ADDR, len);
while (Wire.available()) {
if (i >= len) {
return -1;
}
val[i] = Wire.read();
i++;
}
return i;
}
/** /**
* Taken from the Adafruit-library * Taken from the Adafruit-library
* @brief Converts the raw R/G/B values to color temperature in degrees * @brief Converts the raw R/G/B values to color temperature in degrees
@ -1494,8 +1447,9 @@ int16_t readGesture(void) {
/* If there's stuff in the FIFO, read it into our data block */ /* If there's stuff in the FIFO, read it into our data block */
if (fifo_level > 0) { if (fifo_level > 0) {
bytes_read = wireReadDataBlock(APDS9960_GFIFO_U, (uint8_t*)fifo_data, (fifo_level * 4)); bytes_read = (fifo_level * 4);
if (bytes_read == -1) {
if (I2cReadBuffer(APDS9960_I2C_ADDR, APDS9960_GFIFO_U, (uint8_t*)fifo_data, bytes_read)) {
return APDS9960_ERROR; return APDS9960_ERROR;
} }