77 lines
1.7 KiB
C
77 lines
1.7 KiB
C
/*
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* rgbled.c
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*
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* Created on: Nov 11, 2021
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* Author: dooku
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*/
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#include "rgbled.h"
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static rgbled_context_t *rgbled_context;
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static uint8_t rgbled_intensity = RGBLED_MAX_INTENSITY; /* LED intensity from 0 (off) to RGBLED_MAX_INTENSITY (full power) */
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int8_t rgbled_init(rgbled_context_t *context)
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{
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if (context == NULL) {
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return RGBLED_ERROR;
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}
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rgbled_context = context;
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return RGBLED_OK;
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}
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int8_t rgbled_set_color(uint8_t R, uint8_t G, uint8_t B)
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{
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uint8_t colors[3];
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uint8_t i;
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colors[0] = (uint32_t)R * rgbled_intensity / RGBLED_MAX_INTENSITY;
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colors[1] = (uint32_t)G * rgbled_intensity / RGBLED_MAX_INTENSITY;
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colors[2] = (uint32_t)B * rgbled_intensity / RGBLED_MAX_INTENSITY;
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for (i = 0; i < 3; i++) {
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if (colors[i] > RGBLED_PERIOD) {
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return RGBLED_ERROR;
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}
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}
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for (i = 0; i < 3; i++) {
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switch (rgbled_context->channel_array[i]) {
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case 1:
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LL_TIM_OC_SetCompareCH1(rgbled_context->timer_array[i], (uint32_t)(RGBLED_PERIOD - colors[i]));
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break;
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case 2:
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LL_TIM_OC_SetCompareCH2(rgbled_context->timer_array[i], (uint32_t)(RGBLED_PERIOD - colors[i]));
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break;
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case 3:
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LL_TIM_OC_SetCompareCH3(rgbled_context->timer_array[i], (uint32_t)(RGBLED_PERIOD - colors[i]));
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break;
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case 4:
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LL_TIM_OC_SetCompareCH4(rgbled_context->timer_array[i], (uint32_t)(RGBLED_PERIOD - colors[i]));
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break;
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default:
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return RGBLED_WRONG_CHANNEL;
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}
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}
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return RGBLED_OK;
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}
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int8_t rgbled_set_intensity(uint8_t intensity)
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{
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if (intensity > RGBLED_MAX_INTENSITY) {
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return RGBLED_ERROR;
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}
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rgbled_intensity = intensity;
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}
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int8_t rgbled_get_intensity(uint8_t *intensity)
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{
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if (intensity == NULL) {
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return RGBLED_ERROR;
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}
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*intensity = rgbled_intensity;
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}
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int8_t rgbled_off(void)
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{
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rgbled_set_color(RGBLED_OFF);
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}
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