experiment with wifi connections for nodes

.vscode/settings.json

@@ -59,6 +59,7 @@
         "cfsr",
         "descs",
         "ocrypto",
-        "protobufs"
+        "protobufs",
+        "wifi"
     ]
 }

docs/software/TODO.md

@@ -2,9 +2,11 @@
 
 You probably don't care about this section - skip to the next one.
 
-- bluetooth toggle enable stress test, we are not properly restarting our connect
-- make new android release
-- check in our modified arduino binaries
+- check in wifi code
+- test BLE software update again
+- iram space: https://esp32.com/viewtopic.php?t=8460
+- set https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/external-ram.html spi ram bss
+- figure out if iram or bluetooth classic caused ble problems
 - post bug on esp32-arduino
 - implement first cut of router mode: preferentially handle flooding, and change sleep and GPS behaviors
 - let users set arbitrary params in android

docs/software/esp32-arduino-build-notes.md

@@ -2,7 +2,7 @@
 
 We build our own custom version of esp32-arduino, in order to get some fixes we've made but haven't yet been merged in master.
 
-These are a set of currently unformatted notes on how to build and install them.  Most developers should not care about this, because
+These are a set of currently unformatted notes on how to build and install them. Most developers should not care about this, because
 you'll automatically get our fixed libraries.
 
 ```
@@ -12,5 +12,5 @@ you'll automatically get our fixed libraries.
   https://docs.espressif.com/projects/esp-idf/en/release-v3.3/get-started/linux-setup.html
   kevinh@kevin-server:~/development/meshtastic/esp32-arduino-lib-builder\$ python /home/kevinh/development/meshtastic/esp32-arduino-lib-builder/esp-idf/components/esptool*py/esptool/esptool.py --chip esp32 --port /dev/ttyUSB0 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dout --flash_freq 40m --flash_size detect 0x1000 /home/kevinh/development/meshtastic/esp32-arduino-lib-builder/build/bootloader/bootloader.bin
   cp -a out/tools/sdk/* components/arduino/tools/sdk
-  cp -ar components/arduino/ ~/.platformio/packages/framework-arduinoespressif32@src-fba9d33740f719f712e9f8b07da6ea13/
+  cp -ar components/arduino/* ~/.platformio/packages/framework-arduinoespressif32@src-fba9d33740f719f712e9f8b07da6ea13/
 ```

docs/software/mesh-alg.md

@@ -19,17 +19,18 @@ reliable messaging tasks (stage one for DSR):
 - DONE once an ack comes in, remove the packet from the retry list and deliver the ack to the original sender
 - DONE after three retries, deliver a no-ack packet to the original sender (i.e. the phone app or mesh router service)
 - DONE test one hop ack/nak with the python framework
-- Do stress test with acks
+- DONE Do stress test with acks
 
 dsr tasks
 
-- oops I might have broken message reception
+- DONE oops I might have broken message reception
 - DONE Don't use broadcasts for the network pings (close open github issue)
 - DONE add ignoreSenders to radioconfig to allow testing different mesh topologies by refusing to see certain senders
-- test multihop delivery with the python framework
+- DONE test multihop delivery with the python framework
 
 optimizations / low priority:
 
+- read this [this](http://pages.cs.wisc.edu/~suman/pubs/nadv-mobihoc05.pdf) paper and others and make our naive flood routing less naive
 - read @cyclomies long email with good ideas on optimizations and reply
 - Remove NodeNum assignment algorithm (now that we use 4 byte node nums)
 - make android app warn if firmware is too old or too new to talk to

linker/esp32.extram.bss.ld

@@ -0,0 +1,18 @@
+/* This section is only included if CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
+   is set, to link some sections to BSS in PSRAM */
+
+SECTIONS
+{
+   /* external memory bss, from any global variable with EXT_RAM_ATTR attribute*/
+  .ext_ram.bss (NOLOAD) :
+  {
+    _ext_ram_bss_start = ABSOLUTE(.);
+    *(.ext_ram.bss*)
+    *libnet80211.a:(.dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    *libpp.a:(.dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    *liblwip.a:(.dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    *libbt.a:(EXCLUDE_FILE (libbtdm_app.a) .dynsbss .sbss .sbss.* .gnu.linkonce.sb.* .scommon .sbss2.* .gnu.linkonce.sb2.* .dynbss .bss .bss.* .share.mem .gnu.linkonce.b.* COMMON)
+    . = ALIGN(4);
+    _ext_ram_bss_end = ABSOLUTE(.);
+  } > extern_ram_seg
+}

platformio.ini

@@ -84,7 +84,9 @@ src_filter =
 upload_speed = 921600
 debug_init_break = tbreak setup
 build_flags =
-  ${env.build_flags} -Wall -Wextra -Isrc/esp32 
+  ${env.build_flags} -Wall -Wextra -Isrc/esp32 -mfix-esp32-psram-cache-issue
+# Hmm - this doesn't work yet
+# board_build.ldscript = linker/esp32.extram.bss.ld
 lib_ignore = segger_rtt
 platform_packages =
     framework-arduinoespressif32 @ https://github.com/meshtastic/arduino-esp32.git

proto

@@ -1 +1 @@
-Subproject commit 72cbde93ffbc2ee917f9d7328558475e02a91cba
+Subproject commit fc79db45944959ee3246f6f808db18e4debab72b

src/main.cpp

@@ -42,6 +42,7 @@
 
 #ifndef NO_ESP32
 #include "BluetoothUtil.h"
+#include "WiFi.h"
 #endif
 
 #include "RF95Interface.h"
@@ -124,7 +125,28 @@ static uint32_t ledBlinker()
 
 Periodic ledPeriodic(ledBlinker);
 
+#ifndef NO_ESP32
+void initWifi()
+{
+    strcpy(radioConfig.preferences.wifi_ssid, "geeksville");
+    strcpy(radioConfig.preferences.wifi_password, "xxx");
+    if (radioConfig.has_preferences) {
+        const char *wifiName = radioConfig.preferences.wifi_ssid;
 
+        if (*wifiName) {
+            const char *wifiPsw = radioConfig.preferences.wifi_password;
+            if (radioConfig.preferences.wifi_ap_mode) {
+                // DEBUG_MSG("STARTING WIFI AP: ssid=%s, ok=%d\n", wifiName, WiFi.softAP(wifiName, wifiPsw));
+            } else {
+                // WiFi.mode(WIFI_MODE_STA);
+                DEBUG_MSG("JOINING WIFI: ssid=%s\n", wifiName);
+                // WiFi.begin(wifiName, wifiPsw);
+            }
+        }
+    } else
+        DEBUG_MSG("Not using WIFI\n");
+}
+#endif
 
 void setup()
 {
@@ -213,6 +235,11 @@ void setup()
 
     service.init();
 
+#ifndef NO_ESP32
+    // Must be after we init the service, because the wifi settings are loaded by NodeDB (oops)
+    initWifi();
+#endif
+
 #ifdef SX1262_ANT_SW
     // make analog PA vs not PA switch on SX1262 eval board work properly
     pinMode(SX1262_ANT_SW, OUTPUT);

src/mesh/NodeDB.cpp

@@ -19,7 +19,7 @@
 NodeDB nodeDB;
 
 // we have plenty of ram so statically alloc this tempbuf (for now)
-DeviceState devicestate;
+EXT_RAM_ATTR DeviceState devicestate;
 MyNodeInfo &myNodeInfo = devicestate.my_node;
 RadioConfig &radioConfig = devicestate.radio;
 ChannelSettings &channelSettings = radioConfig.channel_settings;

src/mesh/mesh.pb.h

@@ -101,8 +101,9 @@ typedef struct _RadioConfig_UserPreferences {
     uint32_t sds_secs;
     uint32_t ls_secs;
     uint32_t min_wake_secs;
-    bool keep_all_packets;
-    bool promiscuous_mode;
+    char wifi_ssid[33];
+    char wifi_password[64];
+    bool wifi_ap_mode;
     pb_size_t ignore_incoming_count;
     uint32_t ignore_incoming[3];
 } RadioConfig_UserPreferences;
@@ -241,7 +242,7 @@ typedef struct _ToRadio {
 #define MeshPacket_init_default                  {0, 0, 0, {SubPacket_init_default}, 0, 0, 0, 0, 0}
 #define ChannelSettings_init_default             {0, _ChannelSettings_ModemConfig_MIN, {0, {0}}, ""}
 #define RadioConfig_init_default                 {false, RadioConfig_UserPreferences_init_default, false, ChannelSettings_init_default}
-#define RadioConfig_UserPreferences_init_default {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0}}
+#define RadioConfig_UserPreferences_init_default {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "", "", 0, 0, {0, 0, 0}}
 #define NodeInfo_init_default                    {0, false, User_init_default, false, Position_init_default, 0, 0}
 #define MyNodeInfo_init_default                  {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0, 0}
 #define DeviceState_init_default                 {false, RadioConfig_init_default, false, MyNodeInfo_init_default, false, User_init_default, 0, {NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default, NodeInfo_init_default}, 0, {MeshPacket_init_default}, false, MeshPacket_init_default, 0}
@@ -257,7 +258,7 @@ typedef struct _ToRadio {
 #define MeshPacket_init_zero                     {0, 0, 0, {SubPacket_init_zero}, 0, 0, 0, 0, 0}
 #define ChannelSettings_init_zero                {0, _ChannelSettings_ModemConfig_MIN, {0, {0}}, ""}
 #define RadioConfig_init_zero                    {false, RadioConfig_UserPreferences_init_zero, false, ChannelSettings_init_zero}
-#define RadioConfig_UserPreferences_init_zero    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0}}
+#define RadioConfig_UserPreferences_init_zero    {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "", "", 0, 0, {0, 0, 0}}
 #define NodeInfo_init_zero                       {0, false, User_init_zero, false, Position_init_zero, 0, 0}
 #define MyNodeInfo_init_zero                     {0, 0, 0, "", "", "", 0, 0, 0, 0, 0, 0, 0, 0}
 #define DeviceState_init_zero                    {false, RadioConfig_init_zero, false, MyNodeInfo_init_zero, false, User_init_zero, 0, {NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero, NodeInfo_init_zero}, 0, {MeshPacket_init_zero}, false, MeshPacket_init_zero, 0}
@@ -308,8 +309,9 @@ typedef struct _ToRadio {
 #define RadioConfig_UserPreferences_sds_secs_tag 9
 #define RadioConfig_UserPreferences_ls_secs_tag  10
 #define RadioConfig_UserPreferences_min_wake_secs_tag 11
-#define RadioConfig_UserPreferences_keep_all_packets_tag 100
-#define RadioConfig_UserPreferences_promiscuous_mode_tag 101
+#define RadioConfig_UserPreferences_wifi_ssid_tag 12
+#define RadioConfig_UserPreferences_wifi_password_tag 13
+#define RadioConfig_UserPreferences_wifi_ap_mode_tag 14
 #define RadioConfig_UserPreferences_ignore_incoming_tag 102
 #define RouteDiscovery_route_tag                 2
 #define User_id_tag                              1
@@ -456,8 +458,9 @@ X(a, STATIC,   SINGULAR, UINT32,   mesh_sds_timeout_secs,   8) \
 X(a, STATIC,   SINGULAR, UINT32,   sds_secs,          9) \
 X(a, STATIC,   SINGULAR, UINT32,   ls_secs,          10) \
 X(a, STATIC,   SINGULAR, UINT32,   min_wake_secs,    11) \
-X(a, STATIC,   SINGULAR, BOOL,     keep_all_packets, 100) \
-X(a, STATIC,   SINGULAR, BOOL,     promiscuous_mode, 101) \
+X(a, STATIC,   SINGULAR, STRING,   wifi_ssid,        12) \
+X(a, STATIC,   SINGULAR, STRING,   wifi_password,    13) \
+X(a, STATIC,   SINGULAR, BOOL,     wifi_ap_mode,     14) \
 X(a, STATIC,   REPEATED, UINT32,   ignore_incoming, 102)
 #define RadioConfig_UserPreferences_CALLBACK NULL
 #define RadioConfig_UserPreferences_DEFAULT NULL
@@ -592,11 +595,11 @@ extern const pb_msgdesc_t ManufacturingData_msg;
 #define SubPacket_size                           274
 #define MeshPacket_size                          313
 #define ChannelSettings_size                     60
-#define RadioConfig_size                         157
-#define RadioConfig_UserPreferences_size         93
+#define RadioConfig_size                         253
+#define RadioConfig_UserPreferences_size         188
 #define NodeInfo_size                            132
 #define MyNodeInfo_size                          110
-#define DeviceState_size                         5305
+#define DeviceState_size                         5401
 #define DebugString_size                         258
 #define FromRadio_size                           322
 #define ToRadio_size                             316