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#include "esp_log.h"
#include "esp_check.h"
#include "relay.h"
#include "routes.h"
static const char *TAG = "routes/relay";
/**
* \remark defaults to 4
*/
#define GPIO_RELAY_PIN (gpio_num_t)CONFIG_SHELLSP_RELAY_PIN
#if !CONFIG_IDF_TARGET_LINUX
#include "driver/gpio.h"
/**
* @return initialized relay pin configuration
*/
static gpio_config_t* get_gpio(void)
{
static gpio_config_t io_conf;
if (!io_conf.pin_bit_mask)
{
//disable interrupt
io_conf.intr_type = GPIO_INTR_DISABLE;
//set as output mode
io_conf.mode = GPIO_MODE_OUTPUT;
//bit mask of the pins that you want to set,e.g. GPIO4
io_conf.pin_bit_mask = (1ULL << GPIO_RELAY_PIN);
//disable pull-down mode
io_conf.pull_down_en = GPIO_PULLDOWN_DISABLE;
//disable pull-up mode
io_conf.pull_up_en = GPIO_PULLUP_ENABLE;
//configure GPIO with the given settings
ESP_ERROR_CHECK(gpio_config(&io_conf));
}
return &io_conf;
}
#else /* CONFIG_IDF_TARGET_LINUX */
#define gpio_set_level(...)
#define gpio_get_level(...) 0
#endif
/**
* Handles requests for the `/relay/0` endpoint
*/
esp_err_t relay_handler(httpd_req_t *req)
{
char* resp = NULL;
#if !CONFIG_IDF_TARGET_LINUX
get_gpio();
#endif
size_t query_len = httpd_req_get_url_query_len(req) + 1;
if (query_len > 1)
{
char* buf = (char*)malloc(query_len);
ESP_RETURN_ON_FALSE(buf, ESP_ERR_NO_MEM, TAG, "buffer alloc failed");
if (httpd_req_get_url_query_str(req, buf, query_len) == ESP_OK) {
char param[8];
if (httpd_query_key_value(buf, "turn", param, sizeof(param)) == ESP_OK) {
if (!strcmp("on", param))
{
ESP_LOGD(TAG, "Turned GPIO %i on", GPIO_RELAY_PIN);
state = 1;
gpio_set_level(GPIO_RELAY_PIN, state);
}
else if (!strcmp("off", param))
{
ESP_LOGD(TAG, "Turned GPIO %i off", GPIO_RELAY_PIN);
state = 0;
gpio_set_level(GPIO_RELAY_PIN, state);
}
else if (!strcmp("toggle", param))
{
state = !state;
ESP_LOGD(TAG, "Toggled GPIO %i", GPIO_RELAY_PIN);
gpio_set_level(GPIO_RELAY_PIN, state);
}
else
{
resp = strdup("Bad turn!");
}
}
if (httpd_query_key_value(buf, "timer", param, sizeof(param)) == ESP_OK) {
ESP_LOGI(TAG, "Found URL query parameter => timer=%s", param);
}
}
free(buf);
}
if (!resp)
{
httpd_resp_set_type(req, "application/json");
resp = relay_json();
ESP_RETURN_ON_FALSE(resp, ESP_ERR_NO_MEM, TAG, "buffer alloc failed");
}
httpd_resp_sendstr(req, resp);
free(resp);
return ESP_OK;
}
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