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path: root/drivers/sensors/adns9800.c
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Diffstat (limited to 'drivers/sensors/adns9800.c')
-rw-r--r--drivers/sensors/adns9800.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/sensors/adns9800.c b/drivers/sensors/adns9800.c
index c52f991804..d167841968 100644
--- a/drivers/sensors/adns9800.c
+++ b/drivers/sensors/adns9800.c
@@ -135,10 +135,8 @@ void adns9800_init() {
wait_us(15);
// send all bytes of the firmware
- unsigned char c;
- for (int i = 0; i < FIRMWARE_LENGTH; i++) {
- c = (unsigned char)pgm_read_byte(adns9800_firmware_data + i);
- spi_write(c);
+ for (uint16_t i = 0; i < FIRMWARE_LENGTH; i++) {
+ spi_write(pgm_read_byte(firmware_data + i));
wait_us(15);
}
@@ -154,8 +152,8 @@ void adns9800_init() {
}
config_adns9800_t adns9800_get_config(void) {
- uint8_t config_1 = adns9800_read(REG_Configuration_I);
- return (config_adns9800_t){(config_1 & 0xFF) * CPI_STEP};
+ uint8_t cpival = adns9800_read(REG_Configuration_I);
+ return (config_adns9800_t){(cpival & 0xFF) * CPI_STEP};
}
void adns9800_set_config(config_adns9800_t config) {
@@ -164,8 +162,8 @@ void adns9800_set_config(config_adns9800_t config) {
}
uint16_t adns9800_get_cpi(void) {
- uint8_t config_1 = adns9800_read(REG_Configuration_I);
- return (uint16_t){(config_1 & 0xFF) * CPI_STEP};
+ uint8_t cpival = adns9800_read(REG_Configuration_I);
+ return (uint16_t)(cpival & 0xFF) * CPI_STEP;
}
void adns9800_set_cpi(uint16_t cpi) {
@@ -184,7 +182,7 @@ static int16_t convertDeltaToInt(uint8_t high, uint8_t low) {
}
report_adns9800_t adns9800_get_report(void) {
- report_adns9800_t report = {0, 0};
+ report_adns9800_t report = {0};
adns9800_spi_start();