114 lines
3.1 KiB
C
114 lines
3.1 KiB
C
/*
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* HTTP server example.
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*
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* This sample code is in the public domain.
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*/
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#include <espressif/esp_common.h>
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#include <esp8266.h>
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#include <esp/uart.h>
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#include <string.h>
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#include <stdio.h>
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#include <FreeRTOS.h>
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#include <task.h>
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#include <ssid_config.h>
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#include <httpd/httpd.h>
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#define LED_PIN 2
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enum {
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SSI_UPTIME,
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SSI_FREE_HEAP,
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SSI_LED_STATE
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};
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char *gpio_cgi_handler(int iIndex, int iNumParams, char *pcParam[], char *pcValue[])
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{
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for (int i = 0; i < iNumParams; i++) {
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if (strcmp(pcParam[i], "on") == 0) {
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uint8_t gpio_num = atoi(pcValue[i]);
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gpio_enable(gpio_num, GPIO_OUTPUT);
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gpio_write(gpio_num, true);
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} else if (strcmp(pcParam[i], "off") == 0) {
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uint8_t gpio_num = atoi(pcValue[i]);
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gpio_enable(gpio_num, GPIO_OUTPUT);
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gpio_write(gpio_num, false);
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} else if (strcmp(pcParam[i], "toggle") == 0) {
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uint8_t gpio_num = atoi(pcValue[i]);
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gpio_enable(gpio_num, GPIO_OUTPUT);
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gpio_toggle(gpio_num);
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}
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}
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return "/index.ssi";
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}
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char *about_cgi_handler(int iIndex, int iNumParams, char *pcParam[], char *pcValue[])
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{
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return "/about.html";
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}
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int32_t ssi_handler(int32_t iIndex, char *pcInsert, int32_t iInsertLen)
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{
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switch (iIndex) {
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case SSI_UPTIME:
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snprintf(pcInsert, iInsertLen, "%d",
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xTaskGetTickCount() * portTICK_PERIOD_MS / 1000);
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break;
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case SSI_FREE_HEAP:
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snprintf(pcInsert, iInsertLen, "%d", (int) xPortGetFreeHeapSize());
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break;
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case SSI_LED_STATE:
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snprintf(pcInsert, iInsertLen, (GPIO.OUT & BIT(LED_PIN)) ? "Off" : "On");
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break;
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default:
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snprintf(pcInsert, iInsertLen, "N/A");
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break;
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}
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/* Tell the server how many characters to insert */
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return (strlen(pcInsert));
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}
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void httpd_task(void *pvParameters)
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{
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tCGI pCGIs[] = {
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{"/gpio", (tCGIHandler) gpio_cgi_handler},
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{"/about", (tCGIHandler) about_cgi_handler},
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};
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const char *pcConfigSSITags[] = {
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"uptime", // SSI_UPTIME
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"heap", // SSI_FREE_HEAP
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"led" // SSI_LED_STATE
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};
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/* register handlers and start the server */
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http_set_cgi_handlers(pCGIs, sizeof (pCGIs) / sizeof (pCGIs[0]));
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http_set_ssi_handler((tSSIHandler) ssi_handler, pcConfigSSITags,
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sizeof (pcConfigSSITags) / sizeof (pcConfigSSITags[0]));
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httpd_init();
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for (;;);
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}
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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printf("SDK version:%s\n", sdk_system_get_sdk_version());
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struct sdk_station_config config = {
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.ssid = WIFI_SSID,
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.password = WIFI_PASS,
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};
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/* required to call wifi_set_opmode before station_set_config */
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sdk_wifi_set_opmode(STATION_MODE);
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sdk_wifi_station_set_config(&config);
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sdk_wifi_station_connect();
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/* turn off LED */
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gpio_enable(LED_PIN, GPIO_OUTPUT);
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gpio_write(LED_PIN, true);
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/* initialize tasks */
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xTaskCreate(&httpd_task, "HTTP Daemon", 1024, NULL, 2, NULL);
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}
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