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898998efb0bac501c9d57e8f5ed8cf15bcd68373
squeezelite-esp32/main/esp_app_main.c
Philippe G 898998efb0 big merge
2021-12-18 21:04:23 -08:00

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/*
* Squeezelite for esp32
*
* (c) Sebastien 2019
* Philippe G. 2019, philippe_44@outlook.com
*
* This software is released under the MIT License.
* https://opensource.org/licenses/MIT
*
*/
#include "platform_esp32.h"
#include "led.h"
#include <stdio.h>
#include <string.h>
#include "freertos/FreeRTOS.h"
#include "driver/gpio.h"
#include "driver/spi_master.h"
#include "freertos/task.h"
#include "esp_system.h"
#include "esp_spi_flash.h"
#include "esp_wifi.h"
#include <esp_event.h>
#include "nvs_flash.h"
#include "esp_log.h"
#include "freertos/event_groups.h"
#include "mdns.h"
#include "lwip/api.h"
#include "lwip/err.h"
#include "lwip/netdb.h"
#include "nvs_utilities.h"
#include "trace.h"
#include "network_manager.h"
#include "squeezelite-ota.h"
#include <math.h>
#include "audio_controls.h"
#include "platform_config.h"
#include "telnet.h"
#include "messaging.h"
#include "gds.h"
#include "gds_default_if.h"
#include "gds_draw.h"
#include "gds_text.h"
#include "gds_font.h"
#include "display.h"
#include "accessors.h"
#include "cmd_system.h"
#include "tools.h"
#ifndef CONFIG_DAC_KNOWN_CONFIGURATIONS
#define CONFIG_DAC_KNOWN_CONFIGURATIONS ""
#endif
#ifndef CONFIG_DAC_KNOWN_CONFIGURATIONS_GPIOS
#define CONFIG_DAC_KNOWN_CONFIGURATIONS_GPIOS ""
#endif
static const char certs_namespace[] = "certificates";
static const char certs_key[] = "blob";
static const char certs_version[] = "version";
const char unknown_string_placeholder[] = "unknown";
const char null_string_placeholder[] = "null";
EventGroupHandle_t network_event_group;
bool bypass_network_manager=false;
const int CONNECTED_BIT = BIT0;
#define JOIN_TIMEOUT_MS (10000)
#define LOCAL_MAC_SIZE 20
static const char TAG[] = "esp_app_main";
#define DEFAULT_HOST_NAME "squeezelite"
char * fwurl = NULL;
RTC_NOINIT_ATTR uint32_t RebootCounter ;
static bool bNetworkConnected=false;
extern const uint8_t server_cert_pem_start[] asm("_binary_github_pem_start");
extern const uint8_t server_cert_pem_end[] asm("_binary_github_pem_end");
// as an exception _init function don't need include
extern void services_init(void);
extern void display_init(char *welcome);
const char * str_or_unknown(const char * str) { return (str?str:unknown_string_placeholder); }
const char * str_or_null(const char * str) { return (str?str:null_string_placeholder); }
bool is_recovery_running;
void cb_connection_got_ip(nm_state_t new_state, int sub_state){
static ip4_addr_t ip;
tcpip_adapter_ip_info_t ipInfo;
network_get_ip_info(&ipInfo);
if (ip.addr && ipInfo.ip.addr != ip.addr) {
ESP_LOGW(TAG, "IP change, need to reboot");
if(!wait_for_commit()){
ESP_LOGW(TAG,"Unable to commit configuration. ");
}
esp_restart();
}
ip.addr = ipInfo.ip.addr;
ESP_LOGI(TAG, "Network connected!");
messaging_post_message(MESSAGING_INFO,MESSAGING_CLASS_SYSTEM,"Network connected");
xEventGroupSetBits(network_event_group, CONNECTED_BIT);
bNetworkConnected=true;
led_unpush(LED_GREEN);
if(is_recovery_running){
// when running in recovery, send a LMS discovery message
// to find a running instance. This is to enable using
// the plugin's proxy mode for FW download and avoid
// expired certificate issues.
discover_ota_server(5);
}
}
void cb_connection_sta_disconnected(nm_state_t new_state, int sub_state){
led_blink_pushed(LED_GREEN, 250, 250);
messaging_post_message(MESSAGING_WARNING,MESSAGING_CLASS_SYSTEM,"Wifi disconnected");
bNetworkConnected=false;
xEventGroupClearBits(network_event_group, CONNECTED_BIT);
}
bool wait_for_wifi(){
bool connected=(xEventGroupGetBits(network_event_group) & CONNECTED_BIT)!=0;
if(!connected){
ESP_LOGD(TAG,"Waiting for Network...");
connected = (xEventGroupWaitBits(network_event_group, CONNECTED_BIT,
pdFALSE, pdTRUE, JOIN_TIMEOUT_MS / portTICK_PERIOD_MS)& CONNECTED_BIT)!=0;
if(!connected){
ESP_LOGW(TAG,"Network timeout.");
}
else
{
ESP_LOGI(TAG,"Network Connected!");
}
}
return connected;
}
char * process_ota_url(){
ESP_LOGI(TAG,"Checking for update url");
char * fwurl=config_alloc_get(NVS_TYPE_STR, "fwurl");
if(fwurl!=NULL)
{
ESP_LOGD(TAG,"Deleting nvs entry for Firmware URL %s", fwurl);
config_delete_key("fwurl");
}
return fwurl;
}
esp_log_level_t get_log_level_from_char(char * level){
if(!strcasecmp(level, "NONE" )) { return ESP_LOG_NONE ;}
if(!strcasecmp(level, "ERROR" )) { return ESP_LOG_ERROR ;}
if(!strcasecmp(level, "WARN" )) { return ESP_LOG_WARN ;}
if(!strcasecmp(level, "INFO" )) { return ESP_LOG_INFO ;}
if(!strcasecmp(level, "DEBUG" )) { return ESP_LOG_DEBUG ;}
if(!strcasecmp(level, "VERBOSE" )) { return ESP_LOG_VERBOSE;}
return ESP_LOG_WARN;
}
void set_log_level(char * tag, char * level){
esp_log_level_set(tag, get_log_level_from_char(level));
}
esp_err_t update_certificates(bool force){
nvs_handle handle;
esp_err_t esp_err;
esp_app_desc_t running_app_info;
ESP_LOGI(TAG, "About to check if certificates need to be updated in flash");
esp_err = nvs_open_from_partition(settings_partition, certs_namespace, NVS_READWRITE, &handle);
if (esp_err != ESP_OK) {
LOG_SEND(MESSAGING_INFO,"Unable to update HTTPS certificates. Could not open NVS namespace %s. Error %s", certs_namespace, esp_err_to_name(esp_err));
return esp_err;
}
const esp_partition_t *running = esp_ota_get_running_partition();
ESP_LOGI(TAG, "Running partition [%s] type %d subtype %d (offset 0x%08x)", running->label, running->type, running->subtype, running->address);
if (esp_ota_get_partition_description(running, &running_app_info) == ESP_OK) {
ESP_LOGI(TAG, "Running version: %s", running_app_info.version);
}
size_t len=0;
char *str=NULL;
bool changed=false;
if ( (esp_err= nvs_get_str(handle, certs_version, NULL, &len)) == ESP_OK) {
str=(char *)malloc_init_external(len+1);
if(str){
if ( (esp_err = nvs_get_str(handle, certs_version, str, &len)) == ESP_OK) {
ESP_LOGI(TAG,"Certificate version: %s", str);
}
}
}
if(str!=NULL && running->subtype !=ESP_PARTITION_SUBTYPE_APP_FACTORY){
// If certificates were found in nvs, only update if we're not
// running recovery. This will prevent rolling back to an older version
if(strcmp((char *)running_app_info.version,(char *)str )){
// Versions are different
ESP_LOGW(TAG,"Found a different software version. Updating certificates");
changed=true;
}
free(str);
}
else if(str==NULL){
ESP_LOGW(TAG,"No certificate found. Adding certificates");
changed=true;
}
if(changed || force){
esp_err = nvs_set_blob(handle, certs_key, server_cert_pem_start, (server_cert_pem_end-server_cert_pem_start));
if(esp_err!=ESP_OK){
log_send_messaging(MESSAGING_ERROR,"Failed to store certificate data: %s", esp_err_to_name(esp_err));
}
else {
esp_err = nvs_set_str(handle, certs_version, running_app_info.version);
if(esp_err!=ESP_OK){
log_send_messaging(MESSAGING_ERROR,"Unable to update HTTPS Certificates version: %s",esp_err_to_name(esp_err));
}
else {
esp_err = nvs_commit(handle);
if(esp_err!=ESP_OK){
log_send_messaging(MESSAGING_ERROR,"Failed to commit certificates changes : %s",esp_err_to_name(esp_err));
}
else {
log_send_messaging(MESSAGING_INFO,"HTTPS Certificates were updated with version: %s",running_app_info.version);
}
}
}
}
nvs_close(handle);
return ESP_OK;
}
const char * get_certificate(){
nvs_handle handle;
esp_err_t esp_err;
char *blob =NULL;
//
ESP_LOGD(TAG, "Fetching certificate.");
esp_err = nvs_open_from_partition(settings_partition, certs_namespace, NVS_READONLY, &handle);
if(esp_err == ESP_OK){
size_t len;
esp_err = nvs_get_blob(handle, certs_key, NULL, &len);
if( esp_err == ESP_OK) {
blob = (char *) malloc_init_external(len+1);
if(!blob){
log_send_messaging(MESSAGING_ERROR,"Unable to retrieve HTTPS certificates. %s","Memory allocation failed");
return "";
}
memset(blob,0x00,len+1);
esp_err = nvs_get_blob(handle, certs_key, blob, &len);
if ( esp_err == ESP_OK) {
ESP_LOGD(TAG,"Certificates content is %d bytes long: ", len);
}
else {
log_send_messaging(MESSAGING_ERROR,"Unable to retrieve HTTPS certificates. Get blob failed: %s", esp_err_to_name(esp_err));
}
}
else{
log_send_messaging(MESSAGING_ERROR,"Unable to retrieve HTTPS certificates. Get blob failed: %s",esp_err_to_name(esp_err));
}
nvs_close(handle);
}
else{
log_send_messaging(MESSAGING_ERROR,"Unable to retrieve HTTPS certificates. NVS name space %s open failed: %s",certs_namespace, esp_err_to_name(esp_err));
}
return blob;
}
#define DEFAULT_NAME_WITH_MAC(var,defval) char var[strlen(defval)+sizeof(macStr)]; strcpy(var,defval); strcat(var,macStr)
void register_default_string_val(const char * key, char * value){
char * existing =(char *)config_alloc_get(NVS_TYPE_STR,key );
ESP_LOGD(TAG,"Register default called with: %s= %s",key,value );
if(!existing) {
ESP_LOGI(TAG,"Registering default value for key %s, value %s",key,value );
config_set_default(NVS_TYPE_STR, key,value, 0);
}
else {
ESP_LOGD(TAG,"Value found for %s: %s",key,existing );
}
FREE_AND_NULL(existing);
}
void register_default_with_mac(const char* key, char* defval) {
uint8_t mac[6];
char macStr[LOCAL_MAC_SIZE + 1];
char* fullvalue = NULL;
esp_read_mac((uint8_t*)&mac, ESP_MAC_WIFI_STA);
snprintf(macStr, LOCAL_MAC_SIZE - 1, "-%x%x%x", mac[3], mac[4], mac[5]);
fullvalue = malloc_init_external(strlen(defval)+sizeof(macStr)+1);
if(fullvalue){
strcpy(fullvalue, defval);
strcat(fullvalue, macStr);
register_default_string_val(key,fullvalue);
FREE_AND_NULL(fullvalue);
}
else {
ESP_LOGE(TAG,"Memory allocation failed when registering default value for %s", key);
}
}
void register_default_nvs(){
#ifdef CONFIG_CSPOT_SINK
register_default_string_val("enable_cspot", STR(CONFIG_CSPOT_SINK));
#endif
#ifdef CONFIG_AIRPLAY_SINK
register_default_with_mac("airplay_name", CONFIG_AIRPLAY_NAME);
register_default_string_val("airplay_port", CONFIG_AIRPLAY_PORT);
register_default_string_val( "enable_airplay", STR(CONFIG_AIRPLAY_SINK));
#endif
#ifdef CONFIG_BT_SINK
register_default_string_val( "bt_sink_pin", STR(CONFIG_BT_SINK_PIN));
register_default_string_val( "bt_sink_volume", "127");
register_default_with_mac("bt_name", CONFIG_BT_NAME);
register_default_string_val( "enable_bt_sink", STR(CONFIG_BT_SINK));
register_default_string_val("a2dp_dev_name", CONFIG_A2DP_DEV_NAME);
register_default_string_val("a2dp_ctmt", STR(CONFIG_A2DP_CONNECT_TIMEOUT_MS));
register_default_string_val("a2dp_ctrld", STR(CONFIG_A2DP_CONTROL_DELAY_MS));
register_default_string_val("a2dp_sink_name", CONFIG_A2DP_SINK_NAME);
#endif
register_default_with_mac("host_name", DEFAULT_HOST_NAME);
register_default_with_mac("ap_ssid", CONFIG_DEFAULT_AP_SSID);
register_default_string_val("autoexec","1");
register_default_with_mac("autoexec1",CONFIG_DEFAULT_COMMAND_LINE " -n " DEFAULT_HOST_NAME);
register_default_string_val("release_url", CONFIG_SQUEEZELITE_ESP32_RELEASE_URL);
register_default_string_val("ap_ip_address",CONFIG_DEFAULT_AP_IP);
register_default_string_val("ap_ip_gateway",CONFIG_DEFAULT_AP_GATEWAY );
register_default_string_val("ap_ip_netmask",CONFIG_DEFAULT_AP_NETMASK);
register_default_string_val("ap_channel",STR(CONFIG_DEFAULT_AP_CHANNEL));
register_default_string_val("ap_pwd", CONFIG_DEFAULT_AP_PASSWORD);
register_default_string_val("bypass_wm", "0");
register_default_string_val("equalizer", "");
register_default_string_val("actrls_config", "");
register_default_string_val("lms_ctrls_raw", "n");
register_default_string_val("rotary_config", CONFIG_ROTARY_ENCODER);
char number_buffer[101] = {};
snprintf(number_buffer,sizeof(number_buffer)-1,"%u",OTA_FLASH_ERASE_BLOCK);
register_default_string_val( "ota_erase_blk", number_buffer);
snprintf(number_buffer,sizeof(number_buffer)-1,"%u",OTA_STACK_SIZE);
register_default_string_val( "ota_stack", number_buffer);
snprintf(number_buffer,sizeof(number_buffer)-1,"%d",OTA_TASK_PRIOTITY);
register_default_string_val( "ota_prio", number_buffer);
register_default_string_val( "display_config", CONFIG_DISPLAY_CONFIG);
register_default_string_val( "eth_config", CONFIG_ETH_CONFIG);
register_default_string_val( "i2c_config", CONFIG_I2C_CONFIG);
register_default_string_val( "spi_config", CONFIG_SPI_CONFIG);
register_default_string_val( "set_GPIO", CONFIG_SET_GPIO);
register_default_string_val( "led_brightness", "");
register_default_string_val( "spdif_config", "");
register_default_string_val( "dac_config", "");
register_default_string_val( "dac_controlset", "");
register_default_string_val( "jack_mutes_amp", "n");
register_default_string_val("gpio_exp_config", CONFIG_GPIO_EXP_CONFIG);
register_default_string_val( "bat_config", "");
register_default_string_val( "metadata_config", "");
register_default_string_val( "telnet_enable", "");
register_default_string_val( "telnet_buffer", "40000");
register_default_string_val( "telnet_block", "500");
register_default_string_val( "stats", "n");
register_default_string_val( "rel_api", CONFIG_RELEASE_API);
register_default_string_val("wifi_smode", "A");
register_default_string_val("kndac", CONFIG_DAC_KNOWN_CONFIGURATIONS);
register_default_string_val("kngpio", CONFIG_DAC_KNOWN_CONFIGURATIONS_GPIOS);
wait_for_commit();
ESP_LOGD(TAG,"Done setting default values in nvs.");
}
uint32_t halSTORAGE_RebootCounterRead(void) { return RebootCounter ; }
uint32_t halSTORAGE_RebootCounterUpdate(int32_t xValue) {
if(RebootCounter >100) {
RebootCounter = 0;
}
return (RebootCounter = (xValue != 0) ? (RebootCounter + xValue) : 0) ;
}
void handle_ap_connect(nm_state_t new_state, int sub_state){
start_telnet(NULL);
}
void handle_network_up(nm_state_t new_state, int sub_state){
halSTORAGE_RebootCounterUpdate(0);
}
esp_reset_reason_t xReason=ESP_RST_UNKNOWN;
void app_main()
{
const esp_partition_t *running = esp_ota_get_running_partition();
is_recovery_running = (running->subtype == ESP_PARTITION_SUBTYPE_APP_FACTORY);
xReason = esp_reset_reason();
ESP_LOGI(TAG,"Reset reason is: %u", xReason);
if(!is_recovery_running ) {
/* unscheduled restart (HW, Watchdog or similar) thus increment dynamic
* counter then log current boot statistics as a warning */
uint32_t Counter = halSTORAGE_RebootCounterUpdate(1) ; // increment counter
ESP_LOGI(TAG,"Reboot counter=%u\n", Counter) ;
if (Counter == 5) {
// before we change the partition, update the info for current running partition.
halSTORAGE_RebootCounterUpdate(0);
guided_factory();
}
}
else {
uint32_t Counter = halSTORAGE_RebootCounterUpdate(1) ; // increment counter
ESP_LOGI(TAG,"Recovery Reboot counter=%u\n", Counter) ;
if (Counter == 5) {
ESP_LOGW(TAG,"System rebooted too many times. This could be an indication that configuration is corrupted. Erasing config.");
halSTORAGE_RebootCounterUpdate(0);
erase_settings_partition();
// reboot one more time
guided_factory();
}
}
char * fwurl = NULL;
MEMTRACE_PRINT_DELTA();
ESP_LOGI(TAG,"Starting app_main");
initialize_nvs();
MEMTRACE_PRINT_DELTA();
ESP_LOGI(TAG,"Setting up telnet.");
init_telnet(); // align on 32 bits boundaries
MEMTRACE_PRINT_DELTA();
ESP_LOGI(TAG,"Setting up config subsystem.");
config_init();
MEMTRACE_PRINT_DELTA();
ESP_LOGD(TAG,"Creating event group for wifi");
network_event_group = xEventGroupCreate();
ESP_LOGD(TAG,"Clearing CONNECTED_BIT from wifi group");
xEventGroupClearBits(network_event_group, CONNECTED_BIT);
ESP_LOGI(TAG,"Registering default values");
register_default_nvs();
MEMTRACE_PRINT_DELTA();
ESP_LOGI(TAG,"Configuring services");
services_init();
MEMTRACE_PRINT_DELTA();
ESP_LOGI(TAG,"Initializing display");
display_init("SqueezeESP32");
MEMTRACE_PRINT_DELTA();
if(is_recovery_running && display){
GDS_ClearExt(display, true);
GDS_SetFont(display, &Font_droid_sans_fallback_15x17 );
GDS_TextPos(display, GDS_FONT_MEDIUM, GDS_TEXT_CENTERED, GDS_TEXT_CLEAR | GDS_TEXT_UPDATE, "RECOVERY");
}
ESP_LOGI(TAG,"Checking if certificates need to be updated");
update_certificates(false);
MEMTRACE_PRINT_DELTA();
ESP_LOGD(TAG,"Getting firmware OTA URL (if any)");
fwurl = process_ota_url();
ESP_LOGD(TAG,"Getting value for WM bypass, nvs 'bypass_wm'");
char * bypass_wm = config_alloc_get_default(NVS_TYPE_STR, "bypass_wm", "0", 0);
if(bypass_wm==NULL)
{
ESP_LOGE(TAG, "Unable to retrieve the Wifi Manager bypass flag");
bypass_network_manager = false;
}
else {
bypass_network_manager=(strcmp(bypass_wm,"1")==0 ||strcasecmp(bypass_wm,"y")==0);
}
if(!is_recovery_running){
ESP_LOGD(TAG,"Getting audio control mapping ");
char *actrls_config = config_alloc_get_default(NVS_TYPE_STR, "actrls_config", NULL, 0);
if (actrls_init(actrls_config) == ESP_OK) {
ESP_LOGD(TAG,"Initializing audio control buttons type %s", actrls_config);
} else {
ESP_LOGD(TAG,"No audio control buttons");
}
if (actrls_config) free(actrls_config);
}
/* start the wifi manager */
ESP_LOGD(TAG,"Blinking led");
led_blink_pushed(LED_GREEN, 250, 250);
MEMTRACE_PRINT_DELTA();
if(bypass_network_manager){
ESP_LOGW(TAG,"Network manager is disabled. Use command line for wifi control.");
}
else {
ESP_LOGI(TAG,"Starting Network Manager");
network_start();
MEMTRACE_PRINT_DELTA();
network_register_state_callback(NETWORK_WIFI_ACTIVE_STATE,WIFI_CONNECTED_STATE, "cb_connection_got_ip", &cb_connection_got_ip);
network_register_state_callback(NETWORK_ETH_ACTIVE_STATE,ETH_ACTIVE_CONNECTED_STATE, "cb_connection_got_ip",&cb_connection_got_ip);
network_register_state_callback(NETWORK_WIFI_ACTIVE_STATE,WIFI_LOST_CONNECTION_STATE, "cb_connection_sta_disconnected",&cb_connection_sta_disconnected);
/* Start the telnet service after we are certain that the network stack has been properly initialized.
* This can be either after we're started the AP mode, or after we've started the STA mode */
network_register_state_callback(NETWORK_INITIALIZING_STATE,-1, "handle_ap_connect", &handle_ap_connect);
network_register_state_callback(NETWORK_ETH_ACTIVE_STATE,ETH_ACTIVE_LINKDOWN_STATE, "handle_network_up", &handle_network_up);
network_register_state_callback(NETWORK_WIFI_ACTIVE_STATE,WIFI_INITIALIZING_STATE, "handle_network_up", &handle_network_up);
MEMTRACE_PRINT_DELTA();
}
MEMTRACE_PRINT_DELTA_MESSAGE("Starting Console");
console_start();
MEMTRACE_PRINT_DELTA_MESSAGE("Console started");
if(fwurl && strlen(fwurl)>0){
if(is_recovery_running){
while(!bNetworkConnected){
wait_for_wifi();
taskYIELD();
}
ESP_LOGI(TAG,"Updating firmware from link: %s",fwurl);
start_ota(fwurl, NULL, 0);
}
else {
ESP_LOGE(TAG,"Restarted to application partition. We're not going to perform OTA!");
}
free(fwurl);
}
messaging_post_message(MESSAGING_INFO,MESSAGING_CLASS_SYSTEM,"System started");
}
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