fix(connectivity): harden BLE reprovisioning under memory pressure

2026-08-25 14:09:44 +08:00
parent 140e90447c
commit 6495f0e107
6 changed files with 323 additions and 58 deletions
@@ -180,6 +180,27 @@ menu "TQ Cat Configuration"
            default 2
            range 1 10

+        config TQ_MINI_PROGRAM_PROVISIONING_MIN_FREE_INTERNAL_BYTES
+            int "Minimum free internal memory before BLE provisioning"
+            depends on TQ_MINI_PROGRAM_PROVISIONING_ENABLE
+            default 49152
+            range 16384 131072
+            help
+                BLE controller initialization requires internal DMA-capable
+                memory even when the NimBLE host uses external RAM. Runtime
+                reprovisioning performs a controlled recovery boot when free
+                internal memory remains below this threshold after teardown.
+
+        config TQ_MINI_PROGRAM_PROVISIONING_MIN_LARGEST_DMA_BYTES
+            int "Minimum largest DMA block before BLE provisioning"
+            depends on TQ_MINI_PROGRAM_PROVISIONING_ENABLE
+            default 12288
+            range 4096 65536
+            help
+                Minimum contiguous DMA-capable block required before entering
+                the BLE controller. This headroom prevents the controller ROM
+                from asserting after a late allocation failure.
+
    endmenu

    menu "Runtime Diagnostics"