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authorDrashna Jaelre <drashna@live.com>2022-01-10 14:57:36 -0800
committerGitHub <noreply@github.com>2022-01-10 14:57:36 -0800
commitec7c3ac12dbc355218bae9c392e96b8d513fb95d (patch)
tree0c38c1b28697c242fc3b8c573dbd7625cf18aba2 /drivers/sensors
parent2fbdfae4b740a7b274ceb73cd29de76755fe1542 (diff)
Optimize initialization of PMW3360 Sensor (#15821)
Diffstat (limited to 'drivers/sensors')
-rw-r--r--drivers/sensors/pmw3360.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/sensors/pmw3360.c b/drivers/sensors/pmw3360.c
index ad0a724ee4..4712f6015c 100644
--- a/drivers/sensors/pmw3360.c
+++ b/drivers/sensors/pmw3360.c
@@ -209,12 +209,16 @@ 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);
wait_us(15);
}
+#else
+ spi_transmit(firmware_data, sizeof(firmware_data));
+#endif
wait_us(200);
pmw3360_read(REG_SROM_ID);