Version 11 - History - EC25 - Qualcomm Linux Modems by Quectel & Co - Open Source Mobile Communications

EC25 » History » Version 11

laforge, 12/16/2016 10:13 PM

-laforge
+{{>toc}}
-laforge
+h1. EC25
-laforge
+Below testing has been made on an EC25-E Revision: EC25EFAR02A03M4G (according to ATI0 and the label on the device)
-laforge
+h2. serial console
 In the EC25-E miniPCI that was analyzed, the serial console of bootloader and Linux appears to be active on pins 11+12 of the LGA module (DBG_RXD, DBG_TXD). The console is at 1.8V and at 115200bps.
-laforge
+h2. processes
 h3. quectel_daemon
 seems to be primarily concerned with voice routing / alsa codec related bits, including playback of ringtones
 h3. atfwd_daemon
 implements Quectel specific extensions to the AT command interpreter (ATCOP) using the QMI framework to register them in the modem processor
 h3. Quec_WIFI_CLI
 h3. /usr/bin/time_daemon
 h3. /usr/bin/mbimd
 h3. /usr/bin/pdc_daemon
 h3. /usr/bin/diagrebootapp
-laforge
+an application registering a DIAG command with /dev/diag.  Once that diag command is received, it will write to @/dev/rebooterdev@ which will be picked up by reboot-daemon to actually do the reboot. Weird architecture.
 laforge
 h3. /sbin/reboot-daemon
-laforge
+strange minimalistic daemon that does a blocking read on @/dev/rebooterdev@ and issues a system("reboot") as soon as the read returns.
 laforge
-laforge
+h3. wlan_services
 h3. /usr/bin/qmi_ip_multiclient
 h3. eMBMs_TunnelingModule
 something related to eMBMS (evolved=LTE Multicast)
 h3. alsaucm_test
 h3. /usr/bin/quectel-remotefs-service
 h3. /usr/bin/quectel_psm_aware
 h3. /usr/bin/quectel_monitor_daemon
 h3. /usr/bin/quectel-gps-handle
 h3. /usr/bin/qmi_shutdown_modem
-laforge
+something low power mode related, uses @qmi_simple_ril_test@ and data in /tmp/qmi-shutdown-modem/
-laforge
+h3. /usr/bin/netmgrd
 h3. /usr/bin/thermal-engine
-laforge
+some kind of thermal management for the MSM SoC
-laforge
+h3. /usr/bin/qmuxd
 h3. /usr/bin/quectel_pcm_daemon
 related to alsa soc (asoc) codec configuration, uses /etc/auxpcm.conf
 h3. /usr/bin/qti
 h3. QCMAP_ConnectionManager
-laforge
+related to WLAN/WWAN back-haul switching
-laforge
+h3. ipacmdiag
 related to https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/data-ipa-cfg-mgr/ ?
 h3. ipacm_perf
 related to https://source.codeaurora.org/quic/la/platform/vendor/qcom-opensource/data-ipa-cfg-mgr/ ?
 h3. psmd
 /dev/socket/psm
 h3. /sbin/adbd
 android debug bridge.
 h2. misc outputs
 h3. lsusb output
 laforge
 <pre>
 Bus 001 Device 058: ID 2c7c:0125··
 Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               2.00
   bDeviceClass            0 (Defined at Interface level)
   bDeviceSubClass         0·
   bDeviceProtocol         0·
   bMaxPacketSize0        64
   idVendor           0x2c7c·
   idProduct          0x0125·
   bcdDevice            3.18
   iManufacturer           1 Android
   iProduct                2 Android
   iSerial                 0·
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength          209
     bNumInterfaces          5
     bConfigurationValue     1
     iConfiguration          0·
     bmAttributes         0xa0
       (Bus Powered)
       Remote Wakeup
     MaxPower              500mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           2
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface              0·
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x81  EP 1 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x01  EP 1 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       0
       bNumEndpoints           3
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass      0·
       bInterfaceProtocol      0·
       iInterface              0·
       ** UNRECOGNIZED:  05 24 00 10 01
       ** UNRECOGNIZED:  05 24 01 00 00
       ** UNRECOGNIZED:  04 24 02 02
       ** UNRECOGNIZED:  05 24 06 00 00
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x83  EP 3 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x000a  1x 10 bytes
         bInterval               9
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x82  EP 2 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x02  EP 2 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       0
       bNumEndpoints           3
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass      0·
       bInterfaceProtocol      0·
       iInterface              0·
       ** UNRECOGNIZED:  05 24 00 10 01
       ** UNRECOGNIZED:  05 24 01 00 00
       ** UNRECOGNIZED:  04 24 02 02
       ** UNRECOGNIZED:  05 24 06 00 00
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x85  EP 5 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x000a  1x 10 bytes
         bInterval               9
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x84  EP 4 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x03  EP 3 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       0
       bNumEndpoints           3
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass      0·
       bInterfaceProtocol      0·
       iInterface              0·
       ** UNRECOGNIZED:  05 24 00 10 01
       ** UNRECOGNIZED:  05 24 01 00 00
       ** UNRECOGNIZED:  04 24 02 02
       ** UNRECOGNIZED:  05 24 06 00 00
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x87  EP 7 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x000a  1x 10 bytes
         bInterval               9
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x86  EP 6 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x04  EP 4 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        4
       bAlternateSetting       0
       bNumEndpoints           3
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface              0·
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x89  EP 9 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0008  1x 8 bytes
         bInterval               9
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x88  EP 8 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x05  EP 5 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
 Device Qualifier (for other device speed):
   bLength                10
   bDescriptorType         6
   bcdUSB               2.00
   bDeviceClass            0 (Defined at Interface level)
   bDeviceSubClass         0·
   bDeviceProtocol         0·
   bMaxPacketSize0        64
   bNumConfigurations      1
 Device Status:     0x0000
   (Bus Powered)
-laforge
+</pre>
 h3. ps
 <pre>
 root@mdm9607-perf:/firmware/image# ps axuw
 PID   USER     TIME   COMMAND
 root       0:06 init [5]
 root       0:00 [kthreadd]
 root       0:02 [ksoftirqd/0]
 root       0:04 [kworker/0:0]
 root       0:00 [kworker/0:0H]
 root       0:00 [kworker/u2:0]
 root       0:00 [rcu_preempt]
 root       0:00 [rcu_sched]
 root       0:00 [rcu_bh]
 root       0:00 [khelper]
 root       0:00 [netns]
 root       0:00 [perf]
 root       0:00 [msm_watchdog]
 root       0:00 [smd_channel_clo]
 root       0:00 [smsm_cb_wq]
 root       0:00 [deferwq]
 root       0:00 [irq/52-cpr]
 root       0:00 [mpm]
 root       0:00 [writeback]
 root       0:00 [crypto]
 root       0:00 [bioset]
 root       0:00 [kblockd]
 root       0:00 [system]
 root       0:00 [devfreq_wq]
 root       0:00 [cfg80211]
 root       0:00 [power_off_alarm]
 root       0:00 [kswapd0]
 root       0:00 [fsnotify_mark]
 root       0:00 [glink_ssr_wq]
 root       0:00 [apr_driver]
 root       0:00 [k_hsuart]
 root       0:00 [msm_serial_hs_0]
 root       0:00 [msm_serial_hs_0]
 root       0:00 [diag_real_time_]
 root       0:00 [diag_wq]
 root       0:00 [DIAG_USB_diag]
 root       0:00 [diag_cntl_wq]
 root       0:00 [diag_dci_wq]
 root       0:00 [DIAG_SMD_MODEM_]
 root       0:00 [DIAG_SMD_MODEM_]
 root       0:00 [DIAG_SMD_MODEM_]
 root       0:00 [DIAG_SMD_MODEM_]
 root       0:00 [DIAG_SMD_MODEM_]
 root       0:00 [DIAG_SMD_LPASS_]
 root       0:00 [DIAG_SMD_LPASS_]
 root       0:00 [DIAG_SMD_LPASS_]
 root       0:00 [DIAG_SMD_LPASS_]
 root       0:00 [DIAG_SMD_LPASS_]
 root       0:00 [DIAG_SMD_WCNSS_]
 root       0:00 [DIAG_SMD_WCNSS_]
 root       0:00 [DIAG_SMD_WCNSS_]
 root       0:00 [DIAG_SMD_WCNSS_]
 root       0:00 [DIAG_SMD_WCNSS_]
 root       0:00 [DIAG_SMD_SENSOR]
 root       0:00 [DIAG_SMD_SENSOR]
 root       0:00 [DIAG_SMD_SENSOR]
 root       0:00 [DIAG_SMD_SENSOR]
 root       0:00 [DIAG_SMD_SENSOR]
 root       0:00 [DIAG_SOCKMODEM_]
 root       0:00 [DIAG_SOCKMODEM_]
 root       0:00 [DIAG_SOCKMODEM_]
 root       0:00 [DIAG_SOCKMODEM_]
 root       0:00 [DIAG_SOCKMODEM_]
 root       0:00 [DIAG_SOCKLPASS_]
 root       0:00 [DIAG_SOCKLPASS_]
 root       0:00 [DIAG_SOCKLPASS_]
 root       0:00 [DIAG_SOCKLPASS_]
 root       0:00 [DIAG_SOCKLPASS_]
 root       0:00 [DIAG_SOCKWCNSS_]
 root       0:00 [DIAG_SOCKWCNSS_]
 root       0:00 [DIAG_SOCKWCNSS_]
 root       0:00 [DIAG_SOCKWCNSS_]
 root       0:00 [DIAG_SOCKWCNSS_]
 root       0:00 [DIAG_SOCKSENSOR]
 root       0:00 [DIAG_SOCKSENSOR]
 root       0:00 [DIAG_SOCKSENSOR]
 root       0:00 [DIAG_SOCKSENSOR]
 root       0:00 [DIAG_SOCKSENSOR]
 root       0:00 [DIAG_CNTL_SOCKE]
 root       0:00 [k_gserial]
 root       0:00 [k_ipa_usb]
 root       0:00 [uether]
 root       0:00 [k_gbridge]
 root       0:00 [therm_core:noti]
 root       0:00 [therm_core:noti]
 root       0:00 [therm_core:noti]
 root       0:00 [therm_core:noti]
 root       0:00 [therm_core:noti]
 root       0:00 [irq/216-tsens_i]
 root       0:00 [therm_core:noti]
 root       0:00 [therm_core:noti]
 root       0:00 [cfinteractive]
 root       0:00 [irq/170-7824900]
 root       0:00 [irq/155-mmc0]
 root       0:03 [irq/253-7864900]
 root       0:00 [irq/157-mmc1]
 root       0:00 [usb_bam_wq]
 root       0:00 [qsmd]
 root       0:00 [ipv6_addrconf]
 root       0:00 [msm_ipc_router]
 root       0:00 [irq/441-modem]
 root       0:00 [sysmon_wq]
 root       0:00 [qmi_svc_event_w]
 root       0:00 [bam_dmux_rx]
 root       0:00 [bam_dmux_tx]
 root       0:00 [ubi_bgt0d]
 root       0:00 [ubi_bgt1d]
 root       0:00 [k_bam_data]
 root       0:00 [f_mtp]
 root       0:00 [msm_thermal:fre]
 root       0:00 [msm_thermal:the]
 root       0:00 [ubifs_bgt0_0]
 root       0:00 [IPCRTR]
 root       0:00 [modem_IPCRTR]
 root       0:00 [ubifs_bgt0_1]
 root       0:00 /sbin/adbd
 root       0:00 psmd
 root       0:00 ipacm_perf
 root       0:00 ipacmdiag
 root       0:00 QCMAP_ConnectionManager /etc/mobileap_cfg.xml d
 root       0:00 /usr/bin/qti
 root       0:00 /sbin/tftp_server
 root       0:00 /sbin/fs-scrub-daemon
 root       0:00 /usr/bin/quectel_pcm_daemon
 root       0:00 [sh]
 root       0:00 /sbin/syslogd -n -C64
 root       0:00 [k_gsmd]
 root       0:00 [k_gbam]
 root       0:00 /usr/bin/qmuxd
 root       0:00 /usr/bin/thermal-engine
 root       0:00 /usr/bin/netmgrd
 root       0:00 /usr/bin/qmi_shutdown_modem
 root       0:01 /usr/bin/quectel-gps-handle
 root       0:00 /usr/bin/quectel_monitor_daemon
 root       1:30 /usr/bin/quectel_daemon
 root       0:00 /usr/bin/quectel_psm_aware
 root       0:00 /usr/bin/quectel-remotefs-service
 root       0:20 alsaucm_test
 www-data   0:02 /usr/sbin/lighttpd -f /etc/lighttpd.conf
 nobody     0:00 dnsmasq -i bridge0 -I lo -z --dhcp-range=bridge0,192.168.
 root       0:00 eMBMs_TunnelingModule
 root       0:00 /usr/bin/qmi_ip_multiclient /etc/qmi_ip_cfg.xml
 root       0:00 wlan_services
 messageb   0:00 /usr/bin/dbus-daemon --system
 root       0:00 /sbin/reboot-daemon
 diag       0:02 /usr/bin/diagrebootapp
 root       1:24 /usr/bin/atfwd_daemon
 root       0:00 /usr/bin/pdc_daemon
 root       0:00 /usr/bin/mbimd
 root       0:00 -sh
 root       0:00 /usr/bin/time_daemon
 root       0:00 [kworker/0:1]
 root       0:00 [kworker/u2:1]
 root       0:09 [kworker/u2:2]
 root       0:02 [kworker/u2:3]
 root       0:00 [kworker/u2:4]
 root       0:00 ps axuw
-laforge
+</pre>

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EC25 » History » Version 11