From 696c9f723d3b2fe1577da849bab97a93b9ad5d68 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Sat, 7 Oct 2023 22:27:03 +0200 Subject: [PATCH] uqmi: add illegal SIM state recovery On some network-triggered disconnections the UIM state might end up in "illegal". This prevents the modem from attaching to any network in non-restricted service modes. Detect this state and reset the SIM card. This way, the modem can attach to networks again. Signed-off-by: David Bauer --- .../utils/uqmi/files/lib/netifd/proto/qmi.sh | 31 +++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh index f4432b4fa3..52515dd9c1 100755 --- a/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh +++ b/package/network/utils/uqmi/files/lib/netifd/proto/qmi.sh @@ -98,6 +98,37 @@ proto_qmi_setup() { fi done + # Check if UIM application is stuck in illegal state + local uim_state_timeout=0 + while true; do + json_load "$(uqmi -s -d "$device" --uim-get-sim-state)" + json_get_var card_application_state card_application_state + + # SIM card is either completely absent or state is labeled as illegal + # Try to power-cycle the SIM card to recover from this state + if [ -z "$card_application_state" -o "$card_application_state" = "illegal" ]; then + echo "SIM in illegal state - Power-cycling SIM" + + # Try to reset SIM application + uqmi -d "$device" --uim-power-off --uim-slot 1 + sleep 3 + uqmi -d "$device" --uim-power-on --uim-slot 1 + + if [ "$uim_state_timeout" -lt "$timeout" ] || [ "$timeout" = "0" ]; then + let uim_state_timeout++ + sleep 1 + continue + fi + + # Recovery failed + proto_notify_error "$interface" SIM_ILLEGAL_STATE + proto_block_restart "$interface" + return 1 + else + break + fi + done + if uqmi -s -d "$device" --uim-get-sim-state | grep -q '"Not supported"\|"Invalid QMI command"' && uqmi -s -d "$device" --get-pin-status | grep -q '"Not supported"\|"Invalid QMI command"' ; then [ -n "$pincode" ] && { -- 2.30.2