mirror of
https://github.com/sle118/squeezelite-esp32.git
synced 2025-12-06 11:36:59 +03:00
346 lines
10 KiB
C
346 lines
10 KiB
C
/*
|
|
This example code is in the Public Domain (or CC0 licensed, at your option.)
|
|
|
|
Unless required by applicable law or agreed to in writing, this
|
|
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
CONDITIONS OF ANY KIND, either express or implied.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <math.h>
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/task.h"
|
|
#include "freertos/timers.h"
|
|
#include "esp_system.h"
|
|
#include "esp_log.h"
|
|
#include "driver/gpio.h"
|
|
#include "driver/ledc.h"
|
|
#include "driver/rmt.h"
|
|
#include "platform_config.h"
|
|
#include "gpio_exp.h"
|
|
#include "led.h"
|
|
#include "globdefs.h"
|
|
#include "accessors.h"
|
|
#include "services.h"
|
|
|
|
#define MAX_LED 8
|
|
#define BLOCKTIME 10 // up to portMAX_DELAY
|
|
|
|
#ifdef CONFIG_IDF_TARGET_ESP32S3
|
|
#define LEDC_SPEED_MODE LEDC_LOW_SPEED_MODE
|
|
#else
|
|
#define LEDC_SPEED_MODE LEDC_HIGH_SPEED_MODE
|
|
#endif
|
|
|
|
static const char *TAG = "led";
|
|
|
|
#define RMT_CLK (40/2)
|
|
|
|
static int8_t led_rmt_channel = -1;
|
|
static uint32_t scale24(uint32_t bright, uint8_t);
|
|
|
|
static const struct rmt_led_param_s {
|
|
led_type_t type;
|
|
uint8_t bits;
|
|
// number of ticks in nanoseconds converted in RMT_CLK ticks
|
|
rmt_item32_t bit_0;
|
|
rmt_item32_t bit_1;
|
|
uint32_t green, red;
|
|
uint32_t (*scale)(uint32_t, uint8_t);
|
|
} rmt_led_param[] = {
|
|
{ LED_WS2812, 24, {{{350 / RMT_CLK, 1, 1000 / RMT_CLK, 0}}}, {{{1000 / RMT_CLK, 1, 350 / RMT_CLK, 0}}}, 0xff0000, 0x00ff00, scale24 },
|
|
{ .type = -1 } };
|
|
|
|
static EXT_RAM_ATTR struct led_s {
|
|
gpio_num_t gpio;
|
|
bool on;
|
|
uint32_t color;
|
|
int ontime, offtime;
|
|
int bright;
|
|
int channel;
|
|
const struct rmt_led_param_s *rmt;
|
|
int pushedon, pushedoff;
|
|
bool pushed;
|
|
TimerHandle_t timer;
|
|
} leds[MAX_LED];
|
|
|
|
// can't use EXT_RAM_ATTR for initialized structure
|
|
static struct led_config_s {
|
|
int gpio;
|
|
int color;
|
|
int bright;
|
|
led_type_t type;
|
|
} green = { .gpio = CONFIG_LED_GREEN_GPIO, .color = 0, .bright = -1, .type = LED_GPIO },
|
|
red = { .gpio = CONFIG_LED_RED_GPIO, .color = 0, .bright = -1, .type = LED_GPIO };
|
|
|
|
static int led_max = 2;
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
static uint32_t scale24(uint32_t color, uint8_t scale) {
|
|
uint32_t scaled = (((color & 0xff0000) >> 16) * scale / 100) << 16;
|
|
scaled |= (((color & 0xff00) >> 8) * scale / 100) << 8;
|
|
scaled |= (color & 0xff) * scale / 100;
|
|
return scaled;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
static void set_level(struct led_s *led, bool on) {
|
|
if (led->rmt) {
|
|
uint32_t data = on ? led->rmt->scale(led->color, led->bright) : 0;
|
|
uint32_t mask = 1 << (led->rmt->bits - 1);
|
|
rmt_item32_t buffer[led->rmt->bits];
|
|
for (uint32_t bit = 0; bit < led->rmt->bits; bit++) {
|
|
uint32_t set = data & mask;
|
|
buffer[bit] = set ? led->rmt->bit_1 : led->rmt->bit_0;
|
|
mask >>= 1;
|
|
}
|
|
rmt_write_items(led->channel, buffer, led->rmt->bits, false);
|
|
} else if (led->bright < 0 || led->gpio >= GPIO_NUM_MAX) {
|
|
gpio_set_level_x(led->gpio, on ? led->color : !led->color);
|
|
} else {
|
|
ledc_set_duty(LEDC_SPEED_MODE, led->channel, on ? led->bright : (led->color ? 0 : pwm_system.max));
|
|
ledc_update_duty(LEDC_SPEED_MODE, led->channel);
|
|
}
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
static void vCallbackFunction( TimerHandle_t xTimer ) {
|
|
struct led_s *led = (struct led_s*) pvTimerGetTimerID (xTimer);
|
|
|
|
if (!led->timer) return;
|
|
|
|
led->on = !led->on;
|
|
ESP_EARLY_LOGD(TAG,"led vCallbackFunction setting gpio %d level %d (bright:%d)", led->gpio, led->on, led->bright);
|
|
set_level(led, led->on);
|
|
|
|
// was just on for a while
|
|
if (!led->on && led->offtime == -1) return;
|
|
|
|
// regular blinking
|
|
xTimerChangePeriod(xTimer, (led->on ? led->ontime : led->offtime) / portTICK_RATE_MS, BLOCKTIME);
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
bool led_blink_core(int idx, int ontime, int offtime, bool pushed) {
|
|
if (!leds[idx].gpio || leds[idx].gpio < 0 ) return false;
|
|
|
|
ESP_LOGD(TAG,"led_blink_core %d on:%d off:%d, pushed:%u", idx, ontime, offtime, pushed);
|
|
if (leds[idx].timer) {
|
|
// normal requests waits if a pop is pending
|
|
if (!pushed && leds[idx].pushed) {
|
|
leds[idx].pushedon = ontime;
|
|
leds[idx].pushedoff = offtime;
|
|
return true;
|
|
}
|
|
xTimerStop(leds[idx].timer, BLOCKTIME);
|
|
}
|
|
|
|
// save current state if not already pushed
|
|
if (!leds[idx].pushed) {
|
|
leds[idx].pushedon = leds[idx].ontime;
|
|
leds[idx].pushedoff = leds[idx].offtime;
|
|
leds[idx].pushed = pushed;
|
|
}
|
|
|
|
// then set new one
|
|
leds[idx].ontime = ontime;
|
|
leds[idx].offtime = offtime;
|
|
|
|
if (ontime == 0) {
|
|
ESP_LOGD(TAG,"led %d, setting reverse level", idx);
|
|
set_level(leds + idx, false);
|
|
} else if (offtime == 0) {
|
|
ESP_LOGD(TAG,"led %d, setting level", idx);
|
|
set_level(leds + idx, true);
|
|
} else {
|
|
if (!leds[idx].timer) {
|
|
ESP_LOGD(TAG,"led %d, Creating timer", idx);
|
|
leds[idx].timer = xTimerCreate("ledTimer", ontime / portTICK_RATE_MS, pdFALSE, (void *)&leds[idx], vCallbackFunction);
|
|
}
|
|
leds[idx].on = true;
|
|
set_level(leds + idx, true);
|
|
|
|
ESP_LOGD(TAG,"led %d, Setting gpio %d and starting timer", idx, leds[idx].gpio);
|
|
if (xTimerStart(leds[idx].timer, BLOCKTIME) == pdFAIL) return false;
|
|
}
|
|
|
|
|
|
return true;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
bool led_brightness(int idx, int bright) {
|
|
if (bright > 100) bright = 100;
|
|
|
|
if (leds[idx].rmt) {
|
|
leds[idx].bright = bright;
|
|
} else {
|
|
leds[idx].bright = pwm_system.max * powf(bright / 100.0, 3);
|
|
if (!leds[idx].color) leds[idx].bright = pwm_system.max - leds[idx].bright;
|
|
|
|
ledc_set_duty(LEDC_SPEED_MODE, leds[idx].channel, leds[idx].bright);
|
|
ledc_update_duty(LEDC_SPEED_MODE, leds[idx].channel);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
bool led_unpush(int idx) {
|
|
if (!leds[idx].gpio || leds[idx].gpio<0) return false;
|
|
|
|
led_blink_core(idx, leds[idx].pushedon, leds[idx].pushedoff, true);
|
|
leds[idx].pushed = false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
int led_allocate(void) {
|
|
if (led_max < MAX_LED) return led_max++;
|
|
return -1;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
bool led_config(int idx, gpio_num_t gpio, int color, int bright, led_type_t type) {
|
|
if (gpio < 0) {
|
|
ESP_LOGW(TAG,"LED GPIO -1 ignored");
|
|
return false;
|
|
}
|
|
|
|
if (idx >= MAX_LED) return false;
|
|
|
|
if (bright > 100) bright = 100;
|
|
|
|
leds[idx].gpio = gpio;
|
|
leds[idx].color = color;
|
|
leds[idx].rmt = NULL;
|
|
leds[idx].bright = -1;
|
|
|
|
if (type != LED_GPIO) {
|
|
// first make sure we have a known addressable led
|
|
for (const struct rmt_led_param_s *p = rmt_led_param; !leds[idx].rmt && p->type >= 0; p++) if (p->type == type) leds[idx].rmt = p;
|
|
if (!leds[idx].rmt) return false;
|
|
|
|
if (led_rmt_channel < 0) led_rmt_channel = rmt_system_base_channel++;
|
|
leds[idx].channel = led_rmt_channel;
|
|
leds[idx].bright = bright > 0 ? bright : 100;
|
|
|
|
// set counter clock to 40MHz
|
|
rmt_config_t config = RMT_DEFAULT_CONFIG_TX(gpio, leds[idx].channel);
|
|
config.clk_div = 2;
|
|
|
|
rmt_config(&config);
|
|
rmt_driver_install(config.channel, 0, 0);
|
|
} else if (bright < 0 || gpio >= GPIO_NUM_MAX) {
|
|
gpio_pad_select_gpio_x(gpio);
|
|
gpio_set_direction_x(gpio, GPIO_MODE_OUTPUT);
|
|
} else {
|
|
leds[idx].channel = pwm_system.base_channel++;
|
|
leds[idx].bright = pwm_system.max * powf(bright / 100.0, 3);
|
|
if (!color) leds[idx].bright = pwm_system.max - leds[idx].bright;
|
|
|
|
ledc_channel_config_t ledc_channel = {
|
|
.channel = leds[idx].channel,
|
|
.duty = leds[idx].bright,
|
|
.gpio_num = gpio,
|
|
.speed_mode = LEDC_SPEED_MODE,
|
|
.hpoint = 0,
|
|
.timer_sel = pwm_system.timer,
|
|
};
|
|
|
|
ledc_channel_config(&ledc_channel);
|
|
}
|
|
|
|
set_level(leds + idx, false);
|
|
ESP_LOGD(TAG,"Index %d, GPIO %d, color/onstate %d / RMT %d, bright %d%%", idx, gpio, color, type, bright);
|
|
|
|
return true;
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
static void led_suspend(void) {
|
|
led_off(LED_GREEN);
|
|
led_off(LED_RED);
|
|
}
|
|
|
|
/****************************************************************************************
|
|
*
|
|
*/
|
|
void set_led_gpio(int gpio, char *value) {
|
|
struct led_config_s *config;
|
|
|
|
if (strcasestr(value, "green")) config = &green;
|
|
else if (strcasestr(value, "red"))config = &red;
|
|
else return;
|
|
|
|
config->gpio = gpio;
|
|
char *p = value;
|
|
while ((p = strchr(p, ':')) != NULL) {
|
|
p++;
|
|
if ((strcasestr(p, "ws2812")) != NULL) config->type = LED_WS2812;
|
|
else config->color = atoi(p);
|
|
}
|
|
|
|
if (config->type != LED_GPIO) {
|
|
for (const struct rmt_led_param_s *p = rmt_led_param; p->type >= 0; p++) {
|
|
if (p->type == config->type) {
|
|
if (config == &green) config->color = p->green;
|
|
else config->color = p->red;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void led_svc_init(void) {
|
|
#ifdef CONFIG_LED_GREEN_GPIO_LEVEL
|
|
green.color = CONFIG_LED_GREEN_GPIO_LEVEL;
|
|
#endif
|
|
#ifdef CONFIG_LED_RED_GPIO_LEVEL
|
|
red.color = CONFIG_LED_RED_GPIO_LEVEL;
|
|
#endif
|
|
|
|
#ifndef CONFIG_LED_LOCKED
|
|
parse_set_GPIO(set_led_gpio);
|
|
#endif
|
|
|
|
char *nvs_item = config_alloc_get(NVS_TYPE_STR, "led_brightness");
|
|
if (nvs_item) {
|
|
PARSE_PARAM(nvs_item, "green", '=', green.bright);
|
|
PARSE_PARAM(nvs_item, "red", '=', red.bright);
|
|
free(nvs_item);
|
|
}
|
|
|
|
led_config(LED_GREEN, green.gpio, green.color, green.bright, green.type);
|
|
led_config(LED_RED, red.gpio, red.color, red.bright, red.type);
|
|
|
|
// make sure we switch off all leds (useful for gpio expanders)
|
|
services_sleep_setsuspend(led_suspend);
|
|
|
|
ESP_LOGI(TAG,"Configuring LEDs green:%d (on:%d rmt:%d %d%% ), red:%d (on:%d rmt:%d %d%% )",
|
|
green.gpio, green.color, green.type, green.bright,
|
|
red.gpio, red.color, red.type, red.bright);
|
|
}
|