diff options
Diffstat (limited to 'main/routes/relay.c')
| -rw-r--r-- | main/routes/relay.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/main/routes/relay.c b/main/routes/relay.c new file mode 100644 index 0000000..460e139 --- /dev/null +++ b/main/routes/relay.c @@ -0,0 +1,130 @@ +#include "esp_log.h" +#include "esp_check.h" + +#include "routes.h" + +static const char *TAG = "routes/relay"; + +#define GPIO_RELAY_PIN 4 + +#if !CONFIG_IDF_TARGET_LINUX +#include "driver/gpio.h" + +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 + +int state = 0; + +char* relay_json(void) +{ + char* resp = NULL; + + int rc = asprintf( + &resp, + "{" + "\"ison\":%s," + "\"has_timer\":false," + "\"timer_started\":0," + "\"timer_duration\":0," + "\"timer_remaining\":0," + "\"source\":\"http\"" + "}", + state ? "true" : "false" + ); + + ESP_RETURN_ON_FALSE(resp && rc, NULL, TAG, "buffer alloc failed"); + + return resp; +} + +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 = 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) { + ESP_LOGI(TAG, "Found URL query parameter => turn=%s", param); + + if (!strcmp("on", param)) + { + ESP_LOGI(TAG, "Turned %i on", GPIO_RELAY_PIN); + state = 1; + gpio_set_level(GPIO_RELAY_PIN, state); + } + else if (!strcmp("off", param)) + { + ESP_LOGI(TAG, "Turned %i off", GPIO_RELAY_PIN); + state = 0; + gpio_set_level(GPIO_RELAY_PIN, state); + } + else if (!strcmp("toggle", param)) + { + state = !state; + ESP_LOGI(TAG, "Toggled %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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