Files
ModemManager/plugins
Stephan Gerhold 681d5d29d5 qcom-soc: Add support for WWAN subsystem instead of RPMSG
Recent Linux kernel versions have introduced a generic WWAN subsystem
that provides various char devices for QMI, AT etc, similar to the
subsystem-specific char devices for USB or RPMSG.

The RPMSG char device for Qualcomm SoCs (e.g. MSM8916/MSM8974)
are particularly complicated to work with because they need to be
explicitly created from userspace with rpmsgexport and don't show up
automatically.

However, it turns out it's fairly simple to wrap the RPMSG subsystem
in a simple driver for the WWAN subsystem. This has several advantages:

  - We can drop support for the special RPMSG char devices entirely
    at some point.
  - The WWAN char devices show up automatically, without having to export
    them explicitly, making ModemManager work out of the box on these devices.

For now, just support using the WWAN subsystem alternatively for the
qcom-soc plugin. Later we can consider dropping the old RPMSG code.
2021-07-08 13:41:47 +00:00
..
2021-05-23 00:23:17 +02:00
2020-09-28 08:22:35 +00:00

The following list shows the relationship among the different plugins provided
by default by ModemManager. For each of the plugin types, the list of modem
objects created by the plugin is given.

 * Altair:
   ** MMBroadbandModemAltairLte

 * Anydata:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemAnydata

 * Cinterion:
   ** MMBroadbandModemQmiCinterion
   ** MMBroadbandModemCinterion

 * Dell:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemFoxconnT77w968    (from the Foxconn utils)
   ** MMBroadbandModemMbimXmm           (from the XMM utils)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemNovatel           (from the Novatel utils)
   ** MMBroadbandModemSierra            (from the Sierra Legacy utils)
   ** MMBroadbandModemTelit             (from the Telit utils)
   ** MMBroadbandModemXmm               (from the XMM utils)
   ** MMBroadbandModem                  (generic)

 * D-Link:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModem                  (generic)

 * Fibocom:
   ** MMBroadbandModemMbimXmm           (from the XMM utils)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemXmm               (from the XMM utils)
   ** MMBroadbandModem                  (generic)

 * Foxconn:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemFoxconnT77w968
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Generic:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Gosuncn:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Haier:
   ** MMBroadbandModem                  (generic)

 * Huawei:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemHuawei

 * Icera (no explicit plugin):
   ** MMBroadbandModemIcera

 * Iridium:
   ** MMBroadbandModemIridium

 * Linktop:
   ** MMBroadbandModemLinktop

 * Longcheer:
   ** MMBroadbandModemLongcheer

 * MBM:
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemMbm

 * Motorola:
   ** MMBroadbandModemMotorola

 * Mtk:
   ** MMBroadbandModemMtk

 * Nokia:
   ** MMBroadbandModemNokia

 * Nokia Icera:
   ** MMBroadbandModemIcera             (from the Icera utils)

 * Novatel:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemNovatel

 * Novatel LTE:
   ** MMBroadbandModemNovatelLte

 * Option:
   ** MMBroadbandModemOption

 * Option HSO:
   ** MMBroadbandModemHso

 * Pantech:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemPantech

 * Quectel:
   ** MMBroadbandModemQmiQuectel
   ** MMBroadbandModemQuectel

 * Samsung:
   ** MMBroadbandModemSamsung           (subclassed from the Icera utils)

 * Sierra Legacy:
   ** MMBroadbandModemSierraIcera       (subclassed from the Icera utils)
   ** MMBroadbandModemSierra

 * Sierra:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModem                  (generic)

 * Simtech:
   ** MMBroadbandModemQmiSimtech
   ** MMBroadbandModemSimtech

 * Telit:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbimTelit
   ** MMBroadbandModemTelit

 * Thuraya
   ** MMBroadbandModemThuraya

 * TP-Link:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModem                  (generic)

 * u-blox:
   ** MMBroadbandModemUblox

 * via:
   ** MMBroadbandModemVia

 * wavecom:
   ** MMBroadbandModemWavecom

 * x22x:
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemX22x

 * XMM (no explicit plugin):
   ** MMBroadbandModemMbimXmm
   ** MMBroadbandModemXmm

 * ZTE
   ** MMBroadbandModemQmi               (generic)
   ** MMBroadbandModemMbim              (generic)
   ** MMBroadbandModemZteIcera          (subclassed from the Icera utils)
   ** MMBroadbandModemZte