119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
#include "wifi_cfg.h"
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#include <string.h>
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#include <stdio.h>
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#include "nvs_flash.h"
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#include "nvs.h"
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#define NVS_NS "wifi_prov"
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#define KEY_STA_SSID "sta_ssid"
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#define KEY_STA_PASS "sta_pass"
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#define KEY_AP_SSID "ap_ssid"
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#define KEY_AP_PASS "ap_pass"
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#define DEFAULT_AP_SSID "EIS4"
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#define DEFAULT_AP_PASS "eis4data"
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static char sta_ssid[WIFI_CFG_SSID_MAX];
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static char sta_pass[WIFI_CFG_PASS_MAX];
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static char ap_ssid[WIFI_CFG_SSID_MAX];
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static char ap_pass[WIFI_CFG_PASS_MAX];
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esp_err_t wifi_cfg_init(void)
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{
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memset(sta_ssid, 0, sizeof(sta_ssid));
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memset(sta_pass, 0, sizeof(sta_pass));
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strncpy(ap_ssid, DEFAULT_AP_SSID, sizeof(ap_ssid) - 1);
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strncpy(ap_pass, DEFAULT_AP_PASS, sizeof(ap_pass) - 1);
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nvs_handle_t h;
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esp_err_t err = nvs_open(NVS_NS, NVS_READONLY, &h);
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if (err == ESP_ERR_NVS_NOT_FOUND)
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return ESP_OK;
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if (err != ESP_OK)
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return err;
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size_t len;
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len = sizeof(sta_ssid);
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nvs_get_str(h, KEY_STA_SSID, sta_ssid, &len);
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len = sizeof(sta_pass);
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nvs_get_str(h, KEY_STA_PASS, sta_pass, &len);
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len = sizeof(ap_ssid);
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if (nvs_get_str(h, KEY_AP_SSID, ap_ssid, &len) != ESP_OK) {
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strncpy(ap_ssid, DEFAULT_AP_SSID, sizeof(ap_ssid) - 1);
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}
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len = sizeof(ap_pass);
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if (nvs_get_str(h, KEY_AP_PASS, ap_pass, &len) != ESP_OK) {
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strncpy(ap_pass, DEFAULT_AP_PASS, sizeof(ap_pass) - 1);
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}
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nvs_close(h);
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if (sta_ssid[0])
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printf("WiFi cfg: STA \"%s\"\n", sta_ssid);
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printf("WiFi cfg: AP \"%s\"\n", ap_ssid);
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return ESP_OK;
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}
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bool wifi_cfg_has_sta(void)
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{
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return sta_ssid[0] != '\0';
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}
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esp_err_t wifi_cfg_get_sta(char *ssid, size_t ssid_sz, char *pass, size_t pass_sz)
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{
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if (!sta_ssid[0])
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return ESP_ERR_NOT_FOUND;
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strncpy(ssid, sta_ssid, ssid_sz - 1);
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ssid[ssid_sz - 1] = '\0';
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strncpy(pass, sta_pass, pass_sz - 1);
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pass[pass_sz - 1] = '\0';
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return ESP_OK;
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}
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esp_err_t wifi_cfg_set_sta(const char *ssid, const char *pass)
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{
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nvs_handle_t h;
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esp_err_t err = nvs_open(NVS_NS, NVS_READWRITE, &h);
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if (err != ESP_OK) return err;
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nvs_set_str(h, KEY_STA_SSID, ssid);
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nvs_set_str(h, KEY_STA_PASS, pass);
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nvs_commit(h);
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nvs_close(h);
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strncpy(sta_ssid, ssid, sizeof(sta_ssid) - 1);
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sta_ssid[sizeof(sta_ssid) - 1] = '\0';
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strncpy(sta_pass, pass, sizeof(sta_pass) - 1);
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sta_pass[sizeof(sta_pass) - 1] = '\0';
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return ESP_OK;
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}
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esp_err_t wifi_cfg_get_ap(char *ssid, size_t ssid_sz, char *pass, size_t pass_sz)
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{
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strncpy(ssid, ap_ssid, ssid_sz - 1);
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ssid[ssid_sz - 1] = '\0';
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strncpy(pass, ap_pass, pass_sz - 1);
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pass[pass_sz - 1] = '\0';
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return ESP_OK;
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}
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esp_err_t wifi_cfg_set_ap(const char *ssid, const char *pass)
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{
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nvs_handle_t h;
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esp_err_t err = nvs_open(NVS_NS, NVS_READWRITE, &h);
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if (err != ESP_OK) return err;
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nvs_set_str(h, KEY_AP_SSID, ssid);
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nvs_set_str(h, KEY_AP_PASS, pass);
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nvs_commit(h);
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nvs_close(h);
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strncpy(ap_ssid, ssid, sizeof(ap_ssid) - 1);
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ap_ssid[sizeof(ap_ssid) - 1] = '\0';
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strncpy(ap_pass, pass, sizeof(ap_pass) - 1);
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ap_pass[sizeof(ap_pass) - 1] = '\0';
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return ESP_OK;
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}
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