85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
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// Copyright 2022 Jay Greco
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "v2.h"
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// SCRAMBLE PWM LED config
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pwm_led_t scramble_rgb = {
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{GP18, GP19, GP20},
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{&PWMD1, &PWMD1, &PWMD2},
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{0, 1, 0},
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PWM_OUTPUT_ACTIVE_LOW,
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0
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};
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// Internal PWM init
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// only runs once per PWM LED
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void _init_pwm(pwm_led_t* led) {
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if (!led->init_complete) {
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for (int i=0; i<NUM_RGB_IDX; i++) {
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palSetPadMode(PAL_PORT(led->pin[i]), PAL_PAD(led->pin[i]), PWM_PAL_MODE);
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static PWMConfig pwmCFG = {
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.frequency = PWM_PWM_COUNTER_FREQUENCY,
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.period = PWM_PWM_PERIOD,
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};
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// Channels are always configured as active low
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// If active high is needed, pwm is inverted in _set_led_pwm()
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pwmCFG.channels[0].mode = PWM_OUTPUT_ACTIVE_LOW;
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pwmCFG.channels[1].mode = PWM_OUTPUT_ACTIVE_LOW;
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pwmStart(led->driver[i], &pwmCFG);
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// Start LEDs in the OFF state
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uint8_t pwm = led->mode == PWM_OUTPUT_ACTIVE_HIGH ? 100 : 0;
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pwmEnableChannel(led->driver[i], led->channel[i], PWM_FRACTION_TO_WIDTH(led->driver[i], 99, pwm));
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}
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led->init_complete = 1;
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}
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}
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// Internal generic PWM setter
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void _set_led_pwm(uint8_t pwm, pwm_led_t* led, uint8_t channel) {
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if (pwm > 100) pwm = 100;
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if (led->mode == PWM_OUTPUT_ACTIVE_HIGH) pwm = (100 - pwm);
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_init_pwm(led);
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pwmEnableChannel(led->driver[channel], led->channel[channel], PWM_FRACTION_TO_WIDTH(led->driver[channel], 99, pwm));
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}
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// SCRAMBLE
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void set_scramble_LED(uint8_t mode) {
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switch(mode) {
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case LED_ON:
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set_scramble_LED_rgb_pwm(65, 100, 95);
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break;
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case LED_DIM:
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set_scramble_LED_rgb_pwm(3, 9, 3);
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break;
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default: //LED_OFF
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set_scramble_LED_rgb_pwm(0, 0, 0);
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break;
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}
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}
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void set_scramble_LED_rgb_pwm(uint8_t r_pwm, uint8_t g_pwm, uint8_t b_pwm) {
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_set_led_pwm(r_pwm, &scramble_rgb, RED);
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_set_led_pwm(g_pwm, &scramble_rgb, GREEN);
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_set_led_pwm(b_pwm, &scramble_rgb, BLUE);
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}
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void set_scramble_LED_r_pwm(uint8_t pwm) {
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_set_led_pwm(pwm, &scramble_rgb, RED);
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}
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void set_scramble_LED_g_pwm(uint8_t pwm) {
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_set_led_pwm(pwm, &scramble_rgb, GREEN);
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}
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void set_scramble_LED_b_pwm(uint8_t pwm) {
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_set_led_pwm(pwm, &scramble_rgb, BLUE);
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}
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