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-rw-r--r--code/esp32/components/eos/include/eos.h2
-rw-r--r--code/esp32/components/eos/include/wifi.h7
-rwxr-xr-xcode/esp32/components/eos/wifi.c269
3 files changed, 238 insertions, 40 deletions
diff --git a/code/esp32/components/eos/include/eos.h b/code/esp32/components/eos/include/eos.h
index 59f0ddb..58399ce 100644
--- a/code/esp32/components/eos/include/eos.h
+++ b/code/esp32/components/eos/include/eos.h
@@ -6,6 +6,8 @@
#define EOS_ERR_EMPTY -11
#define EOS_ERR_NOTFOUND -12
+#define EOS_ERR_BUSY -20
+
#define EOS_TASK_PRIORITY_UART 1
#define EOS_TASK_PRIORITY_UART_RI 1
#define EOS_TASK_PRIORITY_I2S 1
diff --git a/code/esp32/components/eos/include/wifi.h b/code/esp32/components/eos/include/wifi.h
index 42c77bd..6009f7c 100644
--- a/code/esp32/components/eos/include/wifi.h
+++ b/code/esp32/components/eos/include/wifi.h
@@ -5,5 +5,8 @@
#define EOS_WIFI_MAX_MTYPE 3
void eos_wifi_init(void);
-void eos_wifi_connect(char *ssid, char *pass);
-void eos_wifi_disconnect(void);
+
+int eos_wifi_scan(void);
+int eos_wifi_set_auth(char *ssid, char *pass);
+int eos_wifi_connect(void);
+int eos_wifi_disconnect(void);
diff --git a/code/esp32/components/eos/wifi.c b/code/esp32/components/eos/wifi.c
index 09b0b39..124c36e 100755
--- a/code/esp32/components/eos/wifi.c
+++ b/code/esp32/components/eos/wifi.c
@@ -11,97 +11,290 @@
#include <esp_log.h>
#include <esp_err.h>
#include <esp_wifi.h>
-#include <nvs_flash.h>
#include "eos.h"
#include "net.h"
#include "wifi.h"
+// XXX: No DHCP server
+
+#define WIFI_CONNECT_MAX_ATTEMPTS 3
+#define WIFI_SCAN_MAX_RECORDS 20
+
+#define WIFI_STATE_STOPPED 0
+#define WIFI_STATE_SCANNING 1
+#define WIFI_STATE_CONNECTING 2
+#define WIFI_STATE_CONNECTED 3
+#define WIFI_STATE_DISCONNECTING 4
+#define WIFI_STATE_DISCONNECTED 5
+
+#define WIFI_ACTION_NONE 0
+#define WIFI_ACTION_SCAN 1
+#define WIFI_ACTION_CONNECT 2
+#define WIFI_ACTION_DISCONNECT 3
+
static const char *TAG = "EOS WIFI";
+static SemaphoreHandle_t mutex;
+
+static wifi_config_t wifi_sta_config;
+static wifi_scan_config_t wifi_scan_config;
+
+static int wifi_connect_cnt = 0;
+static uint8_t wifi_action;
+static uint8_t wifi_state;
+
static esp_err_t wifi_event_handler(void *ctx, system_event_t *event) {
+ esp_err_t ret;
+ char _disconnect;
+ uint8_t _action, _state;
unsigned char *rbuf;
+ wifi_ap_record_t scan_r[WIFI_SCAN_MAX_RECORDS];
+ uint16_t scan_n = WIFI_SCAN_MAX_RECORDS;
switch(event->event_id) {
- case SYSTEM_EVENT_SCAN_DONE:
+ case WIFI_EVENT_SCAN_DONE:
+ memset(scan_r, 0, sizeof(scan_r));
+ esp_wifi_scan_get_ap_records(&scan_n, scan_r);
+
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ _state = wifi_state;
+ if (wifi_state == WIFI_STATE_CONNECTED) wifi_action = WIFI_ACTION_NONE;
+ xSemaphoreGive(mutex);
+
+ if (_state != WIFI_STATE_CONNECTED) ret = esp_wifi_stop();
break;
- case SYSTEM_EVENT_STA_START:
+ case WIFI_EVENT_STA_START:
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ _action = wifi_action;
+ xSemaphoreGive(mutex);
+
+ switch (_action) {
+ case WIFI_ACTION_SCAN:
+ ret = esp_wifi_scan_start(&wifi_scan_config, 0);
+ break;
+
+ case WIFI_ACTION_CONNECT:
+ ret = esp_wifi_connect();
+ break;
+
+ default:
+ break;
+ }
break;
- case SYSTEM_EVENT_STA_STOP:
+ case WIFI_EVENT_STA_STOP:
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ wifi_state = WIFI_STATE_STOPPED;
+ wifi_action = WIFI_ACTION_NONE;
+ xSemaphoreGive(mutex);
break;
- case SYSTEM_EVENT_STA_CONNECTED:
+ case WIFI_EVENT_STA_CONNECTED:
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ wifi_state = WIFI_STATE_CONNECTED;
+ wifi_action = WIFI_ACTION_NONE;
+ wifi_connect_cnt = WIFI_CONNECT_MAX_ATTEMPTS;
+ xSemaphoreGive(mutex);
break;
- case SYSTEM_EVENT_STA_DISCONNECTED:
- ESP_LOGI(TAG, "DISCONNECTED");
+ case WIFI_EVENT_STA_DISCONNECTED:
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ if (wifi_connect_cnt) wifi_connect_cnt--;
+ _action = wifi_action;
+ _disconnect = (wifi_connect_cnt == 0);
+ if (_disconnect) wifi_state = WIFI_STATE_DISCONNECTED;
+ xSemaphoreGive(mutex);
+
+ if (_disconnect) {
+ rbuf = eos_net_alloc();
+ if (_action == WIFI_ACTION_CONNECT) {
+ rbuf[0] = EOS_WIFI_MTYPE_CONNECT;
+ rbuf[1] = 0;
+ eos_net_send(EOS_NET_MTYPE_WIFI, rbuf, 2, 0);
+ } else {
+ rbuf[0] = EOS_WIFI_MTYPE_DISCONNECT;
+ eos_net_send(EOS_NET_MTYPE_WIFI, rbuf, 1, 0);
+ }
+ if (!_action) ret = esp_wifi_stop();
+ } else {
+ ret = esp_wifi_connect();
+ }
break;
- case SYSTEM_EVENT_STA_GOT_IP:
- ESP_LOGI(TAG, "********************************************");
- ESP_LOGI(TAG, "* We are now connected to AP");
- ESP_LOGI(TAG, "* - Our IP address is: " IPSTR, IP2STR(&event->event_info.got_ip.ip_info.ip));
- ESP_LOGI(TAG, "********************************************");
- rbuf = eos_net_alloc();
- rbuf[0] = EOS_WIFI_MTYPE_CONNECT;
- eos_net_send(EOS_NET_MTYPE_WIFI, rbuf, 1, 0);
+ case IP_EVENT_STA_GOT_IP:
+ ESP_LOGD(TAG, "IP address: " IPSTR, IP2STR(&event->event_info.got_ip.ip_info.ip));
+ if (event->event_info.got_ip.ip_changed) {
+ // send wifi reconnect
+ } else {
+ rbuf = eos_net_alloc();
+ rbuf[0] = EOS_WIFI_MTYPE_CONNECT;
+ rbuf[1] = 1;
+ eos_net_send(EOS_NET_MTYPE_WIFI, rbuf, 2, 0);
+ }
break;
default: // Ignore the other event types
break;
}
+ if (ret != ESP_OK) ESP_LOGD(TAG, "ESP WIFI ERR: %d", ret);
return ESP_OK;
}
static void wifi_handler(unsigned char _mtype, unsigned char *buffer, uint16_t size) {
+ int rv = EOS_OK;
uint8_t mtype = buffer[0];
char *ssid, *pass;
switch (mtype) {
case EOS_WIFI_MTYPE_SCAN:
+ rv = eos_wifi_scan();
break;
+
case EOS_WIFI_MTYPE_CONNECT:
ssid = (char *)buffer+1;
pass = ssid+strlen(ssid)+1;
- eos_wifi_connect(ssid, pass);
+ rv = eos_wifi_set_auth(ssid, pass);
+ if (!rv) rv = eos_wifi_connect();
break;
+
case EOS_WIFI_MTYPE_DISCONNECT:
- eos_wifi_disconnect();
+ rv = eos_wifi_disconnect();
break;
}
+ if (rv) ESP_LOGD(TAG, "WIFI HANDLER ERR: %d", rv);
}
void eos_wifi_init(void) {
- wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
- wifi_config_t wifi_config;
-
- memset(&wifi_config, 0, sizeof(wifi_config));
- tcpip_adapter_init();
- // ESP_ERROR_CHECK( nvs_flash_init() );
- ESP_ERROR_CHECK( esp_event_loop_init(wifi_event_handler, NULL) );
- ESP_ERROR_CHECK( esp_wifi_init(&cfg) );
- ESP_ERROR_CHECK( esp_wifi_set_storage(WIFI_STORAGE_RAM) );
- ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA) );
- ESP_ERROR_CHECK( esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
- ESP_ERROR_CHECK( esp_wifi_start() );
+ esp_err_t ret;
+ wifi_init_config_t wifi_config = WIFI_INIT_CONFIG_DEFAULT();
+
+ memset(&wifi_sta_config, 0, sizeof(wifi_sta_config));
+
+ ret = esp_event_loop_init(wifi_event_handler, NULL);
+ assert(ret == ESP_OK);
+
+ ret = esp_wifi_init(&wifi_config);
+ assert(ret == ESP_OK);
+
+ ret = esp_wifi_set_storage(WIFI_STORAGE_RAM);
+ assert(ret == ESP_OK);
+
+ ret = esp_wifi_set_mode(WIFI_MODE_STA);
+ assert(ret == ESP_OK);
+
+ ret = esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_sta_config);
+ assert(ret == ESP_OK);
+
+ mutex = xSemaphoreCreateBinary();
+ xSemaphoreGive(mutex);
+
eos_net_set_handler(EOS_NET_MTYPE_WIFI, wifi_handler);
ESP_LOGI(TAG, "INIT");
}
-void eos_wifi_connect(char *ssid, char *pass) {
- wifi_config_t wifi_config;
+int eos_wifi_scan(void) {
+ int rv = EOS_OK;
+ esp_err_t ret = ESP_OK;
+ uint8_t _wifi_state = 0;
+
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ if (!wifi_action) {
+ _wifi_state = wifi_state;
+
+ wifi_action = WIFI_ACTION_SCAN;
+ if (wifi_state == WIFI_STATE_STOPPED) wifi_state = WIFI_STATE_SCANNING;
+
+ memset(&wifi_scan_config, 0, sizeof(wifi_scan_config));
+ } else {
+ rv = EOS_ERR_BUSY;
+ }
+ xSemaphoreGive(mutex);
- memset(&wifi_config, 0, sizeof(wifi_config));
- strncpy((char *)wifi_config.sta.ssid, ssid, 31);
- strncpy((char *)wifi_config.sta.password, pass, 63);
- ESP_ERROR_CHECK( esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config) );
- ESP_ERROR_CHECK( esp_wifi_connect() );
+ if (rv) return rv;
+
+ if (_wifi_state == WIFI_STATE_STOPPED) {
+ ret = esp_wifi_start();
+ } else {
+ ret = esp_wifi_scan_start(&wifi_scan_config, 0);
+ }
+ if (ret != ESP_OK) rv = EOS_ERR;
+
+ return rv;
+}
+
+int eos_wifi_set_auth(char *ssid, char *pass) {
+ int rv = EOS_OK;
+
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ if (!wifi_action) {
+ if (ssid) strncpy((char *)wifi_sta_config.sta.ssid, ssid, sizeof(wifi_sta_config.sta.ssid) - 1);
+ if (pass) strncpy((char *)wifi_sta_config.sta.password, pass, sizeof(wifi_sta_config.sta.password) - 1);
+ } else {
+ rv = EOS_ERR_BUSY;
+
+ }
+ xSemaphoreGive(mutex);
+
+ return rv;
+}
+
+int eos_wifi_connect(void) {
+ int rv = EOS_OK;
+ esp_err_t ret = ESP_OK;
+ uint8_t _wifi_state = 0;
+
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ if (!wifi_action) {
+ _wifi_state = wifi_state;
+
+ wifi_action = WIFI_ACTION_CONNECT;
+ wifi_state = WIFI_STATE_CONNECTING;
+ wifi_connect_cnt = WIFI_CONNECT_MAX_ATTEMPTS;
+ } else {
+ rv = EOS_ERR_BUSY;
+ }
+ xSemaphoreGive(mutex);
+
+ if (rv) return rv;
+
+
+ esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_sta_config);
+
+ if (_wifi_state == WIFI_STATE_STOPPED) {
+ ret = esp_wifi_start();
+ } else {
+ ret = esp_wifi_connect();
+ }
+ if (ret != ESP_OK) rv = EOS_ERR;
+
+ return rv;
}
-void eos_wifi_disconnect(void) {
- ESP_ERROR_CHECK( esp_wifi_disconnect() );
+int eos_wifi_disconnect(void) {
+ int rv = EOS_OK;
+ esp_err_t ret = ESP_OK;
+
+ xSemaphoreTake(mutex, portMAX_DELAY);
+ if (!wifi_action) {
+ wifi_action = WIFI_ACTION_DISCONNECT;
+ wifi_state = WIFI_STATE_DISCONNECTING;
+ wifi_connect_cnt = 0;
+
+ memset(wifi_sta_config.sta.ssid, 0, sizeof(wifi_sta_config.sta.ssid));
+ memset(wifi_sta_config.sta.password, 0, sizeof(wifi_sta_config.sta.password));
+ } else {
+ rv = EOS_ERR_BUSY;
+ }
+ xSemaphoreGive(mutex);
+
+ if (rv) return rv;
+
+ ret = esp_wifi_stop();
+ if (ret != ESP_OK) rv = EOS_ERR;
+
+ return rv;
}
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