Changes between Version 80 and Version 81 of wireless/modem

Timestamp:

12/14/2021 12:00:07 AM (4 years ago)

Author:

Ryan Erbstoesser

Comment:

add telit pcie instructions

wireless/modem

@@ -1921 +1921 @@
 [[CollapsibleEnd]]
 
+==== Telit FN980M PCIe Mode
+Many people want to use this modem with PCIe. This requires a new MHI driver only in latest kernels (5.15+) available on Venice SBCs. Contact Gateworks support for other board families.  
+
+
+
+Install udhcpc
+{{{
+apt-get update 
+apt-get install udhcpc
+}}}
+
+You need to switch the modem into PCIe mode with the AT command: 
+{{{
+AT#USBPCISWITCH=1,5,0
+AT#REBOOT
+}}}
+To issue the AT command without opening the serial console of the modem, use the code below (assuming modem AT port is ttyUSB2:
+{{{
+echo -n -e "AT#USBPCISWITCH=1,5,0\r" > /dev/ttyUSB2
+echo -n -e "AT#REBOOT\r" > /dev/ttyUSB2
+}}}
+
+Check if modem shows up on PCI bus with a lspci:
+{{{
+root@focal-venice:~# lspci
+04:00.0 Unassigned class [ff00]: Qualcomm Device 0306
+root@focal-venice:~# 
+}}}
+
+
+Check if the modem is registering with qmi:
+{{{
+root@focal-venice:~# qmicli -d /dev/wwan0qmi0 --nas-get-serving-system --device-open-qmi
+[10 Dec 2021, 00:11:07] -Warning ** [/dev/wwan0qmi0] couldn't detect transport type of port: couldn't detect device driver
+[10 Dec 2021, 00:11:07] -Warning ** [/dev/wwan0qmi0] requested QMI mode but unexpected transport type found
+[/dev/wwan0qmi0] Successfully got serving system:
+        Registration state: 'registered'
+        CS: 'attached'
+        PS: 'attached'
+        Selected network: '3gpp'
+        Radio interfaces: '1'
+                [0]: 'lte'
+        Roaming status: 'on'
+        Data service capabilities: '1'
+                [0]: 'lte'
+        Current PLMN:
+                MCC: '310'
+                MNC: '410'
+                Description: 'AT&T'
+        Roaming indicators: '1'
+                [0]: 'on' (lte)
+        3GPP time zone offset: '-480' minutes
+        3GPP daylight saving time adjustment: '0' hours
+        3GPP cell ID: '192330761'
+        Detailed status:
+                Status: 'available'
+                Capability: 'cs-ps'
+                HDR Status: 'none'
+                HDR Hybrid: 'no'
+                Forbidden: 'no'
+        LTE tracking area code: '34605'
+        Full operator code info:
+                MCC: '310'
+                MNC: '410'
+                MNC with PCS digit: 'yes'
+
+}}}
+
+Now connect to network (example with hologram sim) (forcing ipv4)
+{{{
+root@focal-venice:~# qmicli --device-open-qmi -p -d /dev/wwan0qmi0 --wds-start-network="ip-type=4,apn=hologram" --client-no-release-cid --device-open-qmi
+[10 Dec 2021, 00:12:12] -Warning ** [/dev/wwan0qmi0] couldn't detect transport type of port: couldn't detect device driver
+[10 Dec 2021, 00:12:12] -Warning ** [/dev/wwan0qmi0] requested QMI mode but unexpected transport type found
+[/dev/wwan0qmi0] Network started
+        Packet data handle: '3797963312'
+[/dev/wwan0qmi0] Client ID not released:
+        Service: 'wds'
+            CID: '16'
+root@focal-venice:~# 
+
+}}}
+
+If you want to see your IP use the below, replacing the cid with what was issued above:
+{{{
+qmicli --device /dev/wwan0qmi0 --client-no-release-cid --client-cid=16 --wds-get-current-settings --device-open-qmi
+}}}
+
+Lastly get IP address for modem interface mhi_hwip0:
+{{{
+udhcpc -q -f -n -i mhi_hwip0
+}}}
+
+
 ==== Troubleshooting 
 If a new modem is not detecting the SIM card, please try the following: