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- #include "quantum.h"
- #include "backlight.h"
- #include "backlight_driver_common.h"
-
- #if !defined(BACKLIGHT_PIN) && !defined(BACKLIGHT_PINS)
- # error "Backlight pin/pins not defined. Please configure."
- #endif
-
- #if defined(BACKLIGHT_PINS)
- static const pin_t backlight_pins[] = BACKLIGHT_PINS;
- # ifndef BACKLIGHT_LED_COUNT
- # define BACKLIGHT_LED_COUNT (sizeof(backlight_pins) / sizeof(pin_t))
- # endif
-
- # define FOR_EACH_LED(x) \
- for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \
- pin_t backlight_pin = backlight_pins[i]; \
- { x } \
- }
- #else
- // we support only one backlight pin
- static const pin_t backlight_pin = BACKLIGHT_PIN;
- # define FOR_EACH_LED(x) x
- #endif
-
- static inline void backlight_on(pin_t backlight_pin) {
- #if BACKLIGHT_ON_STATE == 0
- writePinLow(backlight_pin);
- #else
- writePinHigh(backlight_pin);
- #endif
- }
-
- static inline void backlight_off(pin_t backlight_pin) {
- #if BACKLIGHT_ON_STATE == 0
- writePinHigh(backlight_pin);
- #else
- writePinLow(backlight_pin);
- #endif
- }
-
- void backlight_pins_init(void) {
- // Setup backlight pin as output and output to off state.
- FOR_EACH_LED(setPinOutput(backlight_pin); backlight_off(backlight_pin);)
- }
-
- void backlight_pins_on(void) { FOR_EACH_LED(backlight_on(backlight_pin);) }
-
- void backlight_pins_off(void) { FOR_EACH_LED(backlight_off(backlight_pin);) }
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