#634 work on reactor PLC backplane

reactor-plc/backplane.lua

@@ -49,6 +49,8 @@ function backplane.init(config, __shared_memory)
 
             log.info("BKPLN: WIRED PHY_" .. util.trinary(modem, "UP ", "DOWN ") .. _bp.lan_iface)
 
+            plc_state.wd_modem = _bp.wd_nic.is_connected()
+
             -- set this as active for now
             _bp.wl_act = false
             _bp.act_nic = _bp.wd_nic
@@ -61,6 +63,8 @@ function backplane.init(config, __shared_memory)
 
             log.info("BKPLN: WIRELESS PHY_" .. util.trinary(modem, "UP ", "DOWN ") .. iface)
 
+            plc_state.wl_modem = _bp.wl_nic.is_connected()
+
             -- set this as active if connected or if both modems are disconnected and this is preferred
             if (modem and _bp.wlan_pref) or not (_bp.act_nic and _bp.act_nic.is_connected()) then
                 _bp.wl_act = true
@@ -68,12 +72,8 @@ function backplane.init(config, __shared_memory)
             end
         end
 
-        plc_state.no_modem = not _bp.act_nic.is_connected()
-
-        databus.tx_hw_modem(not plc_state.no_modem)
-
         -- comms modem is required if networked
-        if plc_state.no_modem then
+        if not (plc_state.wd_modem or plc_state.wl_modem) then
             println("startup> comms modem not found")
             log.warning("BKPLN: no comms modem on startup")
 
@@ -121,11 +121,14 @@ function backplane.active_nic() return _bp.act_nic end
 ---@param device table
 ---@param print_no_fp function
 function backplane.attach(iface, type, device, print_no_fp)
+    local MQ__RPS_CMD = _bp.smem.q_cmds.MQ__RPS_CMD
+
     local networked = _bp.smem.networked
     local state     = _bp.smem.plc_state
     local dev       = _bp.smem.plc_dev
     local sys       = _bp.smem.plc_sys
 
+    if type ~= nil and device ~= nil then
         if state.no_reactor and (type == "fissionReactorLogicAdapter") then
             -- reconnected reactor
             dev.reactor = device
@@ -139,7 +142,7 @@ function backplane.attach(iface, type, device, print_no_fp)
             state.reactor_formed = true
 
             -- determine if we are still in a degraded state
-        if (not networked or not state.no_modem) and state.reactor_formed then
+            if ((not networked) or (state.wd_modem or state.wl_modem)) and state.reactor_formed then
                 state.degraded = false
             end
 
@@ -152,30 +155,72 @@ function backplane.attach(iface, type, device, print_no_fp)
 
             -- partial reset of RPS, specific to becoming formed/reconnected
             -- without this, auto control can't resume on chunk load
-        sys.rps.reset_formed()
+            sys.rps.reset_reattach()
         elseif networked and type == "modem" then
             ---@cast device Modem
-        local is_comms_modem = util.trinary(dev.modem_wired, dev.modem_iface == iface, device.isWireless())
 
-        -- note, check init_ok first since nic will be nil if it is false
+            local m_is_wl = device.isWireless()
-        if is_comms_modem and not (state.init_ok and nic.is_connected()) then
-            -- reconnected modem
-            dev.modem = device
-            state.no_modem = false
 
-            if state.init_ok then nic.connect(device) end
+            log.info(util.c("BKPLN: ", util.trinary(m_is_wl, "WIRELESS", "WIRED"), " PHY_ATTACH ", iface))
 
-            print_no_fp("comms modem reconnected")
+            local is_wd = _bp.wd_nic and (_bp.lan_iface == iface)
-            log.info("comms modem reconnected")
+            local is_wl = _bp.wl_nic and (not _bp.wl_nic.is_connected()) and m_is_wl
+
+            if is_wd then
+                -- connect this as the wired NIC
+                _bp.wd_nic.connect(device)
+
+                log.info("BKPLN: WIRED PHY_UP " .. iface)
+                print_no_fp("wired comms modem reconnected")
+
+                state.wd_modem = true
+
+                if _bp.act_nic == _bp.wd_nic then
+                    -- set as active
+                    _bp.wl_act  = false
+                    _bp.act_nic = _bp.wd_nic
+                elseif _bp.wl_act and not _bp.wlan_pref then
+                    -- switch back to preferred wired
+                    _bp.wl_act  = false
+                    _bp.act_nic = _bp.wd_nic
+
+                    sys.plc_comms.switch_nic(_bp.act_nic)
+                    log.info("BKPLN: switched comms to wired modem (preferred)")
+                end
+            elseif is_wl then
+                -- connect this as the wireless NIC
+                _bp.wl_nic.connect(device)
+
+                log.info("BKPLN: WIRELESS PHY_UP " .. iface)
+                print_no_fp("wireless comms modem reconnected")
+
+                state.wl_modem = true
+
+                if _bp.act_nic == _bp.wl_nic then
+                    -- set as active
+                    _bp.wl_act  = true
+                    _bp.act_nic = _bp.wl_nic
+                elseif (not _bp.wl_act) and _bp.wlan_pref then
+                    -- switch back to preferred wireless
+                    _bp.wl_act  = true
+                    _bp.act_nic = _bp.wl_nic
+
+                    sys.plc_comms.switch_nic(_bp.act_nic)
+                    log.info("BKPLN: switched comms to wireless modem (preferred)")
+                end
+            elseif _bp.wl_nic and m_is_wl then
+                -- the wireless NIC already has a modem
+                print_no_fp("standby wireless modem connected")
+                log.info("BKPLN: standby wireless modem connected")
+            else
+                print_no_fp("unassigned modem connected")
+                log.warning("BKPLN: unassigned modem connected")
+            end
 
             -- determine if we are still in a degraded state
-            if not state.no_reactor then
+            if (state.wd_modem or state.wl_modem) and state.reactor_formed and not state.no_reactor then
                 state.degraded = false
             end
-        elseif device.isWireless() then
-            log.info("unused wireless modem connected")
-        else
-            log.info("non-comms wired modem connected")
         end
     end
 end

reactor-plc/plc.lua

@@ -830,6 +830,22 @@ function plc.comms(version, nic, reactor, rps, conn_watchdog)
     ---@class plc_comms
     local public = {}
 
+    -- switch the current active NIC
+    ---@param _nic nic
+    function public.switch_nic(_nic)
+        nic.closeAll()
+
+        if _nic.isWireless() then
+            comms.set_trusted_range(config.TrustedRange)
+        end
+
+        -- configure receive channels
+        _nic.closeAll()
+        _nic.open(config.PLC_Channel)
+
+        nic = _nic
+    end
+
     -- reconnect a newly connected reactor
     ---@param new_reactor table
     function public.reconnect_reactor(new_reactor)

reactor-plc/renderer.lua

@@ -18,15 +18,14 @@ local ui = {
 }
 
 -- try to start the UI
----@param theme FP_THEME front panel theme
+---@param config plc_config configuration
----@param color_mode COLOR_MODE color mode
 ---@return boolean success, any error_msg
-function renderer.try_start_ui(theme, color_mode)
+function renderer.try_start_ui(config)
     local status, msg = true, nil
 
     if ui.display == nil then
         -- set theme
-        style.set_theme(theme, color_mode)
+        style.set_theme(config.FrontPanelTheme, config.ColorMode)
 
         -- reset terminal
         term.setTextColor(colors.white)
@@ -40,7 +39,7 @@ function renderer.try_start_ui(theme, color_mode)
         end
 
         -- apply color mode
-        local c_mode_overrides = style.theme.color_modes[color_mode]
+        local c_mode_overrides = style.theme.color_modes[config.ColorMode]
         for i = 1, #c_mode_overrides do
             term.setPaletteColor(c_mode_overrides[i].c, c_mode_overrides[i].hex)
         end
@@ -48,7 +47,7 @@ function renderer.try_start_ui(theme, color_mode)
         -- init front panel view
         status, msg = pcall(function ()
             ui.display = DisplayBox{window=term.current(),fg_bg=style.fp.root}
-            panel_view(ui.display)
+            panel_view(ui.display, config)
         end)
 
         if status then

reactor-plc/startup.lua

@@ -91,9 +91,10 @@ local function main()
             fp_ok = false,
             shutdown = false,
             degraded = true,
-            reactor_formed = true,
             no_reactor = true,
-            no_modem = true
+            reactor_formed = true,
+            wd_modem = false,
+            wl_modem = false
         },
 
         -- control setpoints
@@ -123,6 +124,18 @@ local function main()
             mq_rps = mqueue.new(),
             mq_comms_tx = mqueue.new(),
             mq_comms_rx = mqueue.new()
+        },
+
+        -- message queue commands
+        q_cmds = {
+            MQ__RPS_CMD = {
+                SCRAM = 1,
+                DEGRADED_SCRAM = 2,
+                TRIP_TIMEOUT = 3
+            },
+            MQ__COMM_CMD = {
+                SEND_STATUS = 1
+            }
         }
     }
 
@@ -142,7 +155,7 @@ local function main()
 
     -- setup front panel
     local message
-    plc_state.fp_ok, message = renderer.try_start_ui(config.FrontPanelTheme, config.ColorMode)
+    plc_state.fp_ok, message = renderer.try_start_ui(config)
 
     -- ...or not
     if not plc_state.fp_ok then

reactor-plc/threads.lua

@@ -4,6 +4,7 @@ local ppm      = require("scada-common.ppm")
 local tcd       = require("scada-common.tcd")
 local util      = require("scada-common.util")
 
+local backplane = require("reactor-plc.backplane")
 local databus   = require("reactor-plc.databus")
 local renderer  = require("reactor-plc.renderer")
 
@@ -18,16 +19,6 @@ local SP_CTRL_SLEEP = 250 -- 250ms, 5 ticks
 
 local BURN_RATE_RAMP_mB_s = 5.0
 
-local MQ__RPS_CMD = {
-    SCRAM = 1,
-    DEGRADED_SCRAM = 2,
-    TRIP_TIMEOUT = 3
-}
-
-local MQ__COMM_CMD = {
-    SEND_STATUS = 1
-}
-
 -- main thread
 ---@nodiscard
 ---@param smem plc_shared_memory
@@ -54,6 +45,9 @@ function threads.thread__main(smem)
         local plc_state    = smem.plc_state
         local plc_dev      = smem.plc_dev
 
+        local MQ__RPS_CMD  = smem.q_cmds.MQ__RPS_CMD
+        local MQ__COMM_CMD = smem.q_cmds.MQ__COMM_CMD
+
         -- start clock
         loop_clock.start()
 
@@ -175,60 +169,8 @@ function threads.thread__main(smem)
             elseif event == "peripheral" then
                 -- peripheral connect
                 local type, device = ppm.mount(param1)
-
                 if type ~= nil and device ~= nil then
-                    if plc_state.no_reactor and (type == "fissionReactorLogicAdapter") then
+                    backplane.attach(param1, type, device, println_ts)
-                        -- reconnected reactor
-                        plc_dev.reactor = device
-                        plc_state.no_reactor = false
-
-                        println_ts("reactor reconnected")
-                        log.info("reactor reconnected")
-
-                        -- we need to assume formed here as we cannot check in this main loop
-                        -- RPS will identify if it isn't and this will get set false later
-                        plc_state.reactor_formed = true
-
-                        -- determine if we are still in a degraded state
-                        if (not networked or not plc_state.no_modem) and plc_state.reactor_formed then
-                            plc_state.degraded = false
-                        end
-
-                        smem.q.mq_rps.push_command(MQ__RPS_CMD.SCRAM)
-
-                        rps.reconnect_reactor(plc_dev.reactor)
-                        if networked then
-                            plc_comms.reconnect_reactor(plc_dev.reactor)
-                        end
-
-                        -- partial reset of RPS, specific to becoming formed/reconnected
-                        -- without this, auto control can't resume on chunk load
-                        rps.reset_reattach()
-                    elseif networked and type == "modem" then
-                        ---@cast device Modem
-                        local is_comms_modem = util.trinary(plc_dev.modem_wired, plc_dev.modem_iface == param1, device.isWireless())
-
-                        -- note, check init_ok first since nic will be nil if it is false
-                        if is_comms_modem and not nic.is_connected() then
-                            -- reconnected modem
-                            plc_dev.modem = device
-                            plc_state.no_modem = false
-
-                            nic.connect(device)
-
-                            println_ts("comms modem reconnected")
-                            log.info("comms modem reconnected")
-
-                            -- determine if we are still in a degraded state
-                            if plc_state.reactor_formed and not plc_state.no_reactor then
-                                plc_state.degraded = false
-                            end
-                        elseif device.isWireless() then
-                            log.info("unused wireless modem connected")
-                        else
-                            log.info("non-comms wired modem connected")
-                        end
-                    end
                 end
 
                 -- update indicators
@@ -295,6 +237,8 @@ function threads.thread__rps(smem)
 
         local rps_queue   = smem.q.mq_rps
 
+        local MQ__RPS_CMD = smem.q_cmds.MQ__RPS_CMD
+
         local was_linked  = false
         local last_update = util.time()
 
@@ -428,6 +372,8 @@ function threads.thread__comms_tx(smem)
         local plc_state    = smem.plc_state
         local comms_queue  = smem.q.mq_comms_tx
 
+        local MQ__COMM_CMD = smem.q_cmds.MQ__COMM_CMD
+
         local last_update = util.time()
 
         -- thread loop