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PMW3389 Revert Firmware load during Initilization (#15859)

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Alabastard-64 2022-01-12 19:51:05 -07:00 • committed by GitHub
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1
docs/feature_pointing_device.md
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@ -174,7 +174,6 @@ The PMW 3389 is an SPI driven optical sensor, that uses a built in IR LED for su
|`PMW3389_SPI_DIVISOR` | (Optional) Sets the SPI Divisor used for SPI communication. | _varies_ |
|`PMW3389_LIFTOFF_DISTANCE` | (Optional) Sets the lift off distance at run time | `0x02` |
|`ROTATIONAL_TRANSFORM_ANGLE` | (Optional) Allows for the sensor data to be rotated +/- 30 degrees directly in the sensor. | `0` |
|`PMW3389_LEGACY_FIRMWARE_UPLOAD` | (Optional) Switches to older, manual upload of firmware, for compatibility. | _not defined_ |
The CPI range is 50-16000, in increments of 50. Defaults to 2000 CPI.

6
drivers/sensors/pmw3389.c
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@ -210,16 +210,14 @@ void pmw3389_upload_firmware(void) {
spi_write(REG_SROM_Load_Burst | 0x80);
wait_us(15);
#ifdef PMW3389_LEGACY_FIRMWARE_UPLOAD
// legacy only for PMW3389 spi_transmit failed to load firmware
unsigned char c;
for (int i = 0; i < FIRMWARE_LENGTH; i++) {
c = (unsigned char)pgm_read_byte(firmware_data + i);
spi_write(c);
wait_us(15);
}
#else
spi_transmit(firmware_data, sizeof(firmware_data));
#endif
wait_us(200);
pmw3389_read(REG_SROM_ID);