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path: root/drivers/sensors/pmw3360.c
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Diffstat (limited to 'drivers/sensors/pmw3360.c')
-rw-r--r--drivers/sensors/pmw3360.c12
1 files changed, 4 insertions, 8 deletions
diff --git a/drivers/sensors/pmw3360.c b/drivers/sensors/pmw3360.c
index 0dac600cc2..8d1b08e22b 100644
--- a/drivers/sensors/pmw3360.c
+++ b/drivers/sensors/pmw3360.c
@@ -206,16 +206,12 @@ void pmw3360_upload_firmware(void) {
spi_write(REG_SROM_Load_Burst | 0x80);
wait_us(15);
-#ifdef PMW3360_LEGACY_FIRMWARE_UPLOAD
- unsigned char c;
- for (int i = 0; i < FIRMWARE_LENGTH; i++) {
- c = (unsigned char)pgm_read_byte(firmware_data + i);
- spi_write(c);
+ for (uint16_t i = 0; i < FIRMWARE_LENGTH; i++) {
+ spi_write(pgm_read_byte(firmware_data + i));
+#ifndef PMW3360_FIRMWARE_UPLOAD_FAST
wait_us(15);
- }
-#else
- spi_transmit(firmware_data, sizeof(firmware_data));
#endif
+ }
wait_us(200);
pmw3360_read(REG_SROM_ID);