diff options
Diffstat (limited to 'quantum/backlight/backlight_soft.c')
| -rw-r--r-- | quantum/backlight/backlight_soft.c | 54 |
1 files changed, 8 insertions, 46 deletions
diff --git a/quantum/backlight/backlight_soft.c b/quantum/backlight/backlight_soft.c index 096b41d910..8552384a42 100644 --- a/quantum/backlight/backlight_soft.c +++ b/quantum/backlight/backlight_soft.c @@ -9,47 +9,7 @@ # error "Backlight breathing is not available for software PWM. Please disable." #endif -#ifndef BACKLIGHT_ON_STATE -# define BACKLIGHT_ON_STATE 1 -#endif - -#ifdef BACKLIGHT_PINS -# define BACKLIGHT_PIN_INIT BACKLIGHT_PINS -#else -# define BACKLIGHT_PIN_INIT \ - { BACKLIGHT_PIN } -#endif - -static uint16_t s_duty_pattern = 0; -static const pin_t backlight_pins[] = BACKLIGHT_PIN_INIT; -#define BACKLIGHT_LED_COUNT (sizeof(backlight_pins) / sizeof(pin_t)) - -#define FOR_EACH_LED(x) \ - for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \ - pin_t backlight_pin = backlight_pins[i]; \ - { x } \ - } - -void backlight_on(pin_t backlight_pin) { -#if BACKLIGHT_ON_STATE == 0 - writePinLow(backlight_pin); -#else - writePinHigh(backlight_pin); -#endif -} - -void backlight_off(pin_t backlight_pin) { -#if BACKLIGHT_ON_STATE == 0 - writePinHigh(backlight_pin); -#else - writePinLow(backlight_pin); -#endif -} - -void backlight_init_ports(void) { - // Setup backlight pin as output and output to off state. - FOR_EACH_LED(setPinOutput(backlight_pin); backlight_off(backlight_pin);) -} +static uint16_t s_duty_pattern = 0; // clang-format off @@ -58,7 +18,7 @@ void backlight_init_ports(void) { * We scale the current backlight level to an index within this array. This allows * backlight_task to focus on just switching LEDs on/off, and we can predict the duty pattern */ -static uint16_t backlight_duty_table[] = { +static const uint16_t backlight_duty_table[] = { 0b0000000000000000, 0b1000000000000000, 0b1000000010000000, @@ -75,15 +35,17 @@ static uint16_t backlight_duty_table[] = { static uint8_t scale_backlight(uint8_t v) { return v * (backlight_duty_table_size - 1) / BACKLIGHT_LEVELS; } +void backlight_init_ports(void) { backlight_pins_init(); } + +void backlight_set(uint8_t level) { s_duty_pattern = backlight_duty_table[scale_backlight(level)]; } + void backlight_task(void) { static uint8_t backlight_tick = 0; if (s_duty_pattern & ((uint16_t)1 << backlight_tick)) { - FOR_EACH_LED(backlight_on(backlight_pin);) + backlight_pins_on(); } else { - FOR_EACH_LED(backlight_off(backlight_pin);) + backlight_pins_off(); } backlight_tick = (backlight_tick + 1) % 16; } - -void backlight_set(uint8_t level) { s_duty_pattern = backlight_duty_table[scale_backlight(level)]; } |