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OVMS3-idf/components/esp32/event_default_handlers.c
Ivan Grokhotkov 53de9f115f Event handling refactoring 
This change separates definitions in esp_event.h and functions in event.c into several parts:
- event structure definitions (esp_event.h)
- default implementations of event handlers (event_default_handlers.c)
- default implementation of event loop (event_loop.c, esp_event_loop.h)

Purpose of this change is to allow applications choose their own poison:
- full control of event loop at the expense of more bootstrap code
- pre-defined event task firing event callbacks, but less code in app_main.c
2016-09-26 01:17:32 +08:00

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "esp_err.h"
#include "esp_wifi.h"
#include "esp_event.h"
#include "esp_event_loop.h"
#include "esp_task.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
#include "tcpip_adapter.h"
#include "esp_log.h"
const char* TAG = "event";
#define WIFI_API_CALL_CHECK(info, api_call, ret) \
do{\
esp_err_t __err = (api_call);\
if ((ret) != __err) {\
ESP_LOGE(TAG, "%s %d %s ret=%d", __FUNCTION__, __LINE__, (info), __err);\
return __err;\
}\
} while(0)
typedef esp_err_t (*system_event_handle_fn_t)(system_event_t *e);
typedef struct {
system_event_id_t event_id;
system_event_handle_fn_t event_handle;
} system_event_handle_t;
static esp_err_t system_event_ap_start_handle_default(system_event_t *event);
static esp_err_t system_event_ap_stop_handle_default(system_event_t *event);
static esp_err_t system_event_sta_start_handle_default(system_event_t *event);
static esp_err_t system_event_sta_stop_handle_default(system_event_t *event);
static esp_err_t system_event_sta_connected_handle_default(system_event_t *event);
static esp_err_t system_event_sta_disconnected_handle_default(system_event_t *event);
static esp_err_t system_event_sta_got_ip_default(system_event_t *event);
static system_event_handle_t g_system_event_handle_table[] = {
{SYSTEM_EVENT_WIFI_READY, NULL},
{SYSTEM_EVENT_SCAN_DONE, NULL},
{SYSTEM_EVENT_STA_START, system_event_sta_start_handle_default},
{SYSTEM_EVENT_STA_STOP, system_event_sta_stop_handle_default},
{SYSTEM_EVENT_STA_CONNECTED, system_event_sta_connected_handle_default},
{SYSTEM_EVENT_STA_DISCONNECTED, system_event_sta_disconnected_handle_default},
{SYSTEM_EVENT_STA_AUTHMODE_CHANGE, NULL},
{SYSTEM_EVENT_STA_GOT_IP, system_event_sta_got_ip_default},
{SYSTEM_EVENT_AP_START, system_event_ap_start_handle_default},
{SYSTEM_EVENT_AP_STOP, system_event_ap_stop_handle_default},
{SYSTEM_EVENT_AP_STACONNECTED, NULL},
{SYSTEM_EVENT_AP_STADISCONNECTED, NULL},
{SYSTEM_EVENT_AP_PROBEREQRECVED, NULL},
{SYSTEM_EVENT_MAX, NULL},
};
static esp_err_t system_event_sta_got_ip_default(system_event_t *event)
{
extern esp_err_t esp_wifi_set_sta_ip(void);
WIFI_API_CALL_CHECK("esp_wifi_set_sta_ip", esp_wifi_set_sta_ip(), ESP_OK);
ESP_LOGI(TAG, "ip: " IPSTR ", mask: " IPSTR ", gw: " IPSTR,
IP2STR(&event->event_info.got_ip.ip_info.ip),
IP2STR(&event->event_info.got_ip.ip_info.netmask),
IP2STR(&event->event_info.got_ip.ip_info.gw));
return ESP_OK;
}
esp_err_t system_event_ap_start_handle_default(system_event_t *event)
{
tcpip_adapter_ip_info_t ap_ip;
uint8_t ap_mac[6];
WIFI_API_CALL_CHECK("esp_wifi_reg_rxcb", esp_wifi_reg_rxcb(WIFI_IF_AP, (wifi_rxcb_t)tcpip_adapter_ap_input), ESP_OK);
WIFI_API_CALL_CHECK("esp_wifi_mac_get", esp_wifi_get_mac(WIFI_IF_AP, ap_mac), ESP_OK);
tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_AP, &ap_ip);
tcpip_adapter_start(TCPIP_ADAPTER_IF_AP, ap_mac, &ap_ip);
return ESP_OK;
}
esp_err_t system_event_ap_stop_handle_default(system_event_t *event)
{
WIFI_API_CALL_CHECK("esp_wifi_reg_rxcb", esp_wifi_reg_rxcb(WIFI_IF_AP, NULL), ESP_OK);
tcpip_adapter_stop(TCPIP_ADAPTER_IF_AP);
return ESP_OK;
}
esp_err_t system_event_sta_start_handle_default(system_event_t *event)
{
tcpip_adapter_ip_info_t sta_ip;
uint8_t sta_mac[6];
WIFI_API_CALL_CHECK("esp_wifi_mac_get", esp_wifi_get_mac(WIFI_IF_STA, sta_mac), ESP_OK);
tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &sta_ip);
tcpip_adapter_start(TCPIP_ADAPTER_IF_STA, sta_mac, &sta_ip);
return ESP_OK;
}
esp_err_t system_event_sta_stop_handle_default(system_event_t *event)
{
tcpip_adapter_stop(TCPIP_ADAPTER_IF_STA);
return ESP_OK;
}
esp_err_t system_event_sta_connected_handle_default(system_event_t *event)
{
tcpip_adapter_dhcp_status_t status;
WIFI_API_CALL_CHECK("esp_wifi_reg_rxcb", esp_wifi_reg_rxcb(WIFI_IF_STA, (wifi_rxcb_t)tcpip_adapter_sta_input), ESP_OK);
tcpip_adapter_up(TCPIP_ADAPTER_IF_STA);
tcpip_adapter_dhcpc_get_status(TCPIP_ADAPTER_IF_STA, &status);
if (status == TCPIP_ADAPTER_DHCP_INIT) {
tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
} else if (status == TCPIP_ADAPTER_DHCP_STOPPED) {
tcpip_adapter_ip_info_t sta_ip;
tcpip_adapter_get_ip_info(TCPIP_ADAPTER_IF_STA, &sta_ip);
if (!(ip4_addr_isany_val(sta_ip.ip) || ip4_addr_isany_val(sta_ip.netmask) || ip4_addr_isany_val(sta_ip.gw))) {
system_event_t evt;
//notify event
evt.event_id = SYSTEM_EVENT_STA_GOT_IP;
memcpy(&evt.event_info.got_ip.ip_info, &sta_ip, sizeof(tcpip_adapter_ip_info_t));
esp_event_send(&evt);
} else {
ESP_LOGE(TAG, "invalid static ip");
}
}
return ESP_OK;
}
esp_err_t system_event_sta_disconnected_handle_default(system_event_t *event)
{
tcpip_adapter_down(TCPIP_ADAPTER_IF_STA);
WIFI_API_CALL_CHECK("esp_wifi_reg_rxcb", esp_wifi_reg_rxcb(WIFI_IF_STA, NULL), ESP_OK);
return ESP_OK;
}
static esp_err_t esp_system_event_debug(system_event_t *event)
{
if (event == NULL) {
ESP_LOGE(TAG, "event is null!");
return ESP_FAIL;
}
switch (event->event_id) {
case SYSTEM_EVENT_WIFI_READY: {
ESP_LOGD(TAG, "SYSTEM_EVENT_WIFI_READY");
break;
}
case SYSTEM_EVENT_SCAN_DONE: {
system_event_sta_scan_done_t *scan_done = &event->event_info.scan_done;
ESP_LOGD(TAG, "SYSTEM_EVENT_SCAN_DONE, status:%d, number:%d", scan_done->status, scan_done->number);
break;
}
case SYSTEM_EVENT_STA_START: {
ESP_LOGD(TAG, "SYSTEM_EVENT_STA_START");
break;
}
case SYSTEM_EVENT_STA_STOP: {
ESP_LOGD(TAG, "SYSTEM_EVENT_STA_STOP");
break;
}
case SYSTEM_EVENT_STA_CONNECTED: {
system_event_sta_connected_t *connected = &event->event_info.connected;
ESP_LOGD(TAG, "SYSTEM_EVENT_STA_CONNECTED, ssid:%s, ssid_len:%d, bssid:%02x:%02x:%02x:%02x:%02x:%02x, channel:%d, authmode:%d", \
connected->ssid, connected->ssid_len, connected->bssid[0], connected->bssid[0], connected->bssid[1], \
connected->bssid[3], connected->bssid[4], connected->bssid[5], connected->channel, connected->authmode);
break;
}
case SYSTEM_EVENT_STA_DISCONNECTED: {
system_event_sta_disconnected_t *disconnected = &event->event_info.disconnected;
ESP_LOGD(TAG, "SYSTEM_EVENT_STA_DISCONNECTED, ssid:%s, ssid_len:%d, bssid:%02x:%02x:%02x:%02x:%02x:%02x, reason:%d", \
disconnected->ssid, disconnected->ssid_len, disconnected->bssid[0], disconnected->bssid[0], disconnected->bssid[1], \
disconnected->bssid[3], disconnected->bssid[4], disconnected->bssid[5], disconnected->reason);
break;
}
case SYSTEM_EVENT_STA_AUTHMODE_CHANGE: {
system_event_sta_authmode_change_t *auth_change = &event->event_info.auth_change;
ESP_LOGD(TAG, "SYSTEM_EVENT_STA_AUTHMODE_CHNAGE, old_mode:%d, new_mode:%d", auth_change->old_mode, auth_change->new_mode);
break;
}
case SYSTEM_EVENT_STA_GOT_IP: {
system_event_sta_got_ip_t *got_ip = &event->event_info.got_ip;
ESP_LOGD(TAG, "SYSTEM_EVENT_STA_GOTIP, ip:" IPSTR ", mask:" IPSTR ", gw:" IPSTR,
IP2STR(&got_ip->ip_info.ip),
IP2STR(&got_ip->ip_info.netmask),
IP2STR(&got_ip->ip_info.gw));
break;
}
case SYSTEM_EVENT_AP_START: {
ESP_LOGD(TAG, "SYSTEM_EVENT_AP_START");
break;
}
case SYSTEM_EVENT_AP_STOP: {
ESP_LOGD(TAG, "SYSTEM_EVENT_AP_STOP");
break;
}
case SYSTEM_EVENT_AP_STACONNECTED: {
system_event_ap_staconnected_t *staconnected = &event->event_info.sta_connected;
ESP_LOGD(TAG, "SYSTEM_EVENT_AP_STACONNECTED, mac:%02x:%02x:%02x:%02x:%02x:%02x, aid:%d", \
staconnected->mac[0], staconnected->mac[0], staconnected->mac[1], \
staconnected->mac[3], staconnected->mac[4], staconnected->mac[5], staconnected->aid);
break;
}
case SYSTEM_EVENT_AP_STADISCONNECTED: {
system_event_ap_stadisconnected_t *stadisconnected = &event->event_info.sta_disconnected;
ESP_LOGD(TAG, "SYSTEM_EVENT_AP_STADISCONNECTED, mac:%02x:%02x:%02x:%02x:%02x:%02x, aid:%d", \
stadisconnected->mac[0], stadisconnected->mac[0], stadisconnected->mac[1], \
stadisconnected->mac[3], stadisconnected->mac[4], stadisconnected->mac[5], stadisconnected->aid);
break;
}
case SYSTEM_EVENT_AP_PROBEREQRECVED: {
system_event_ap_probe_req_rx_t *ap_probereqrecved = &event->event_info.ap_probereqrecved;
ESP_LOGD(TAG, "SYSTEM_EVENT_AP_PROBEREQRECVED, rssi:%d, mac:%02x:%02x:%02x:%02x:%02x:%02x", \
ap_probereqrecved->rssi, ap_probereqrecved->mac[0], ap_probereqrecved->mac[0], ap_probereqrecved->mac[1], \
ap_probereqrecved->mac[3], ap_probereqrecved->mac[4], ap_probereqrecved->mac[5]);
break;
}
default: {
ESP_LOGW(TAG, "no such kind of event!");
break;
}
}
return ESP_OK;
}
esp_err_t esp_event_process_default(system_event_t *event)
{
if (event == NULL) {
ESP_LOGE(TAG, "Error: event is null!");
return ESP_FAIL;
}
esp_system_event_debug(event);
if ((event->event_id < SYSTEM_EVENT_MAX) && (event->event_id == g_system_event_handle_table[event->event_id].event_id)) {
if (g_system_event_handle_table[event->event_id].event_handle) {
ESP_LOGV(TAG, "enter default callback");
g_system_event_handle_table[event->event_id].event_handle(event);
ESP_LOGV(TAG, "exit default callback");
}
} else {
ESP_LOGE(TAG, "mismatch or invalid event, id=%d", event->event_id);
return ESP_FAIL;
}
return ESP_OK;
}
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