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OneOfEleven
2023-11-10 16:45:07 +00:00
parent 2b98faeedf
commit e2e571b4fb
9 changed files with 40 additions and 36 deletions
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40
driver/backlight.c
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@ -22,13 +22,12 @@
#include "settings.h"
uint16_t g_backlight_tick_10ms;
bool g_backlight_on;
void BACKLIGHT_init(void)
{
// 48MHz / 94 / 1024 ~ 500Hz
const uint32_t PWM_FREQUENCY_HZ = 1000;
PWM_PLUS0_CLKSRC |= ((CPU_CLOCK_HZ / 1024 / PWM_FREQUENCY_HZ) << 16);
PWM_PLUS0_CLKSRC |= (CPU_CLOCK_HZ / 1024 / PWM_FREQUENCY_HZ) << 16;
PWM_PLUS0_PERIOD = 1023;
PORTCON_PORTB_SEL0 &= ~(PORTCON_PORTB_SEL0_B6_MASK);
@ -44,29 +43,36 @@ uint16_t BACKLIGHT_ticks(void)
uint16_t ticks = 0;
switch (g_eeprom.config.setting.backlight_time)
{
case 1: ticks = 5; break; // 5 sec
case 2: ticks = 10; break; // 10 sec
case 3: ticks = 20; break; // 20 sec
case 4: ticks = 60; break; // 1 min
case 5: ticks = 60 * 2; break; // 2 min
case 6: ticks = 60 * 4; break; // 4 min
case 1: ticks = 5; break; // 5 sec
case 2: ticks = 10; break; // 10 sec
case 3: ticks = 20; break; // 20 sec
case 4: ticks = 60; break; // 1 min
case 5: ticks = 120; break; // 2 min
case 6: ticks = 240; break; // 4 min
}
return ticks * 100;
}
void BACKLIGHT_set_brightness(unsigned int brightness)
bool BACKLIGHT_is_on(void)
{
brightness = (brightness > BACKLIGHT_MAX_BRIGHTNESS) ? BACKLIGHT_MAX_BRIGHTNESS : brightness;
// non-linear
PWM_PLUS0_CH0_COMP = (1023ul * brightness * brightness) / (BACKLIGHT_MAX_BRIGHTNESS * BACKLIGHT_MAX_BRIGHTNESS);
//PWM_PLUS0_SWLOAD = 1;
g_backlight_on = (brightness > 0) ? true : false;
return (PWM_PLUS0_CH0_COMP > 0) ? true : false;
}
void BACKLIGHT_turn_on(const uint16_t min_ticks)
void BACKLIGHT_set_brightness(unsigned int brightness)
{
if (brightness > BACKLIGHT_MAX_BRIGHTNESS)
brightness = BACKLIGHT_MAX_BRIGHTNESS;
// non-linear 0 ~ 1023
PWM_PLUS0_CH0_COMP = (1023ul * brightness * brightness * brightness) / (BACKLIGHT_MAX_BRIGHTNESS * BACKLIGHT_MAX_BRIGHTNESS * BACKLIGHT_MAX_BRIGHTNESS);
//PWM_PLUS0_SWLOAD = 1;
// g_backlight_on = (brightness > 0) ? true : false;
}
void BACKLIGHT_turn_on(const unsigned int min_secs)
{
const uint16_t min_ticks = min_secs * 100;
if (min_ticks > 0)
{
if (g_backlight_tick_10ms < min_ticks)