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Refactor more backlight to a common location (#8292)

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* Refactor more backlight to a common location

* BACKLIGHT_PIN not defined for custom backlight

* align function names
This commit is contained in:
Joel Challis 2020-03-06 12:49:45 +00:00 • committed by GitHub
parent 116c0e44a1
commit 918a85d342
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
5 changed files with 78 additions and 112 deletions
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63
quantum/backlight/backlight_avr.c
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@ -164,49 +164,7 @@ error("Please set 'BACKLIGHT_DRIVER = custom' within rules.mk")
error("Please set 'BACKLIGHT_DRIVER = software' within rules.mk")
#endif
#ifndef BACKLIGHT_ON_STATE
# define BACKLIGHT_ON_STATE 1
#endif
void backlight_on(pin_t backlight_pin) {
#if BACKLIGHT_ON_STATE == 1
writePinHigh(backlight_pin);
#else
writePinLow(backlight_pin);
#endif
}
void backlight_off(pin_t backlight_pin) {
#if BACKLIGHT_ON_STATE == 1
writePinLow(backlight_pin);
#else
writePinHigh(backlight_pin);
#endif
}
#ifdef BACKLIGHT_PWM_TIMER // pwm through software
// we support multiple backlight pins
# ifndef BACKLIGHT_LED_COUNT
# define BACKLIGHT_LED_COUNT 1
# endif
# if BACKLIGHT_LED_COUNT == 1
# define BACKLIGHT_PIN_INIT \
{ BACKLIGHT_PIN }
# else
# define BACKLIGHT_PIN_INIT BACKLIGHT_PINS
# endif
# define FOR_EACH_LED(x) \
for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \
pin_t backlight_pin = backlight_pins[i]; \
{ x } \
}
static const pin_t backlight_pins[BACKLIGHT_LED_COUNT] = BACKLIGHT_PIN_INIT;
#else // full hardware PWM
#ifndef BACKLIGHT_PWM_TIMER // pwm through software
static inline void enable_pwm(void) {
# if BACKLIGHT_ON_STATE == 1
@ -224,10 +182,6 @@ static inline void disable_pwm(void) {
# endif
}
// we support only one backlight pin
static const pin_t backlight_pin = BACKLIGHT_PIN;
# define FOR_EACH_LED(x) x
#endif
#ifdef BACKLIGHT_PWM_TIMER
@ -246,7 +200,7 @@ static const pin_t backlight_pin = BACKLIGHT_PIN;
// The LED will then be on for OCRxx/0xFFFF time, adjusted every 244Hz.
// Triggered when the counter reaches the OCRx value
ISR(TIMERx_COMPA_vect) { FOR_EACH_LED(backlight_off(backlight_pin);) }
ISR(TIMERx_COMPA_vect) { backlight_pins_off(); }
// Triggered when the counter reaches the TOP value
// this one triggers at F_CPU/65536 =~ 244 Hz
@ -265,7 +219,7 @@ ISR(TIMERx_OVF_vect) {
// takes many computation cycles).
// so better not turn them on while the counter TOP is very low.
if (OCRxx > 256) {
FOR_EACH_LED(backlight_on(backlight_pin);)
backlight_pins_on();
}
}
@ -305,7 +259,7 @@ void backlight_set(uint8_t level) {
// Turn off PWM control on backlight pin
disable_pwm();
#endif
FOR_EACH_LED(backlight_off(backlight_pin);)
backlight_pins_off();
} else {
#ifdef BACKLIGHT_PWM_TIMER
if (!OCRxx) {
@ -397,13 +351,6 @@ void breathing_self_disable(void) {
breathing_halt = BREATHING_HALT_ON;
}
void breathing_toggle(void) {
if (is_breathing())
breathing_disable();
else
breathing_enable();
}
/* To generate breathing curve in python:
* from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)]
*/
@ -438,7 +385,7 @@ ISR(TIMERx_OVF_vect)
void backlight_init_ports(void) {
// Setup backlight pin as output and output to on state.
FOR_EACH_LED(setPinOutput(backlight_pin); backlight_on(backlight_pin);)
backlight_pins_init();
// I could write a wall of text here to explain... but TL;DW
// Go read the ATmega32u4 datasheet.