Messages in this thread Patch in this message | | | From | Yanchao Yang <> | Subject | [PATCH net-next v1 13/13] net: wwan: tmi: Add maintainers and documentation | Date | Tue, 22 Nov 2022 19:27:10 +0800 |
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From: MediaTek Corporation <linuxwwan@mediatek.com>
Adds maintainers and documentation for MediaTek TMI 5G WWAN modem device driver.
Signed-off-by: Felix Chen <felix.chen@mediatek.com> Signed-off-by: MediaTek Corporation <linuxwwan@mediatek.com> --- .../networking/device_drivers/wwan/index.rst | 1 + .../networking/device_drivers/wwan/tmi.rst | 48 +++++++++++++++++++ MAINTAINERS | 11 +++++ 3 files changed, 60 insertions(+) create mode 100644 Documentation/networking/device_drivers/wwan/tmi.rst
diff --git a/Documentation/networking/device_drivers/wwan/index.rst b/Documentation/networking/device_drivers/wwan/index.rst index 370d8264d5dc..8298629b4d55 100644 --- a/Documentation/networking/device_drivers/wwan/index.rst +++ b/Documentation/networking/device_drivers/wwan/index.rst @@ -10,6 +10,7 @@ Contents: iosm t7xx + tmi .. only:: subproject and html diff --git a/Documentation/networking/device_drivers/wwan/tmi.rst b/Documentation/networking/device_drivers/wwan/tmi.rst new file mode 100644 index 000000000000..3655779bf692 --- /dev/null +++ b/Documentation/networking/device_drivers/wwan/tmi.rst @@ -0,0 +1,48 @@ +.. SPDX-License-Identifier: BSD-3-Clause-Clear + +.. Copyright (c) 2022, MediaTek Inc. + +.. _tmi_driver_doc: + +==================================================== +TMI driver for MTK PCIe based T-series 5G Modem +==================================================== +The TMI(T-series Modem Interface) driver is a WWAN PCIe host driver developed +for data exchange over PCIe interface between Host platform and MediaTek's +T-series 5G modem. The driver exposes control plane and data plane interfaces +to applications. The control plane provides device node interfaces for control +data transactions. The data plane provides network link interfaces for IP data +transactions. + +Control channel userspace ABI +============================= +/dev/wwan0at0 character device +------------------------------ +The driver exposes an AT port by implementing AT WWAN Port. +The userspace end of the control channel pipe is a /dev/wwan0at0 character +device. Application shall use this interface to issue AT commands. + +/dev/wwan0mbim0 character device +-------------------------------- +The driver exposes an MBIM interface to the MBIM function by implementing +MBIM WWAN Port. The userspace end of the control channel pipe is a +/dev/wwan0mbim0 character device. Applications shall use this interface +for MBIM protocol communication. + +Data channel userspace ABI +========================== +wwan0-X network device +---------------------- +The TMI driver exposes IP link interfaces "wwan0-X" of type "wwan" for IP +traffic. Iproute network utility is used for creating "wwan0-X" network +interfaces and for associating it with the MBIM IP session. + +The userspace management application is responsible for creating a new IP link +prior to establishing an MBIM IP session where the SessionId is greater than 0. + +For example, creating a new IP link for an MBIM IP session with SessionId 1: + + ip link add dev wwan0-1 parentdev wwan0 type wwan linkid 1 + +The driver will automatically map the "wwan0-1" network device to MBIM IP +session 1. diff --git a/MAINTAINERS b/MAINTAINERS index a96c60c787af..eac544b274ac 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13058,6 +13058,17 @@ L: netdev@vger.kernel.org S: Supported F: drivers/net/wwan/t7xx/ +MEDIATEK TMI 5G WWAN MODEM DRIVER +M: Yanchao Yang <yanchao.yang@mediatek.com> +M: Min Dong <min.dong@mediatek.com> +M: MediaTek Corporation <linuxwwan@mediatek.com> +R: Liang Lu <liang.lu@mediatek.com> +R: Haijun Liu <haijun.liu@mediatek.com> +R: Lambert Wang <lambert.wang@mediatek.com> +L: netdev@vger.kernel.org +S: Supported +F: drivers/net/wwan/tmi/ + MEDIATEK USB3 DRD IP DRIVER M: Chunfeng Yun <chunfeng.yun@mediatek.com> L: linux-usb@vger.kernel.org -- 2.32.0
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