The u-blox SARA-R4 modem modules are Ultra-compact LTE Cat
M1 / NB1 ready:
- Configurable with a single hardware version
- Flexible mode selection as LTE Cat M1, LTE Cat NB1, EGPRS -
only/preferred
- Low power consumption and longer battery life
- Extended range in buildings, basements, and with NB1,
underground
This driver introduces support for basic AT commands to
query modem information as well as socket connection
for TCP/UDP communication.
Signed-off-by: Michael Scott <mike@foundries.io>
In commit c1f24abb13 ("drivers: modem: wistron kconfig separation"),
A single line of the WNC-M14A2A congigs was left in the main modem
Kconfig.
Let's clean up the Kconfig file by removing the left over.
Signed-off-by: Michael Scott <mike@foundries.io>
Moved UART interrupt dependencies from concrete driver to
the modem receiver as it uses UART interrupt functions within.
This allows developing other UART interrupt based modems without
the need to depend on the aforementioned features explicitly.
Signed-off-by: Georgij Cernysiov <g.cernysiov@elco-automation.de>
Modem driver for WNCM14A2A was erroneously leaving the
selection of UART_INTERRUPT_DRIVEN up to CONSOLE_HANDLER.
Now, with the move to the new SHELL backend, this is no
longer happening.
Let's select it from the modem driver, instead of depending
on it.
Let's also add a dependency on SERIAL_SUPPORT_INTERRUPT
which the serial drivers enable to let us know
UART_INTERRUPT_DRIVEN is available.
Signed-off-by: Michael Scott <mike@foundries.io>
These settings enable use of the WNC-M14A2A LTE-M modem as the default
network interface for the nRF52840-DK board (nrf52840_pca10056).
They include the following settings when MODEM_WNCM14A2A is selected:
- UARTE1 pin setup
- DTS / DTS fixup additions for WNC-M14A2A
- Kconfig settings for modem driver
Signed-off-by: Michael Scott <mike@foundries.io>
These settings enable use of the WNC-M14A2A LTE-M modem as the default
network interface instead of ethernet.
They include the following settings when MODEM_WNCM14A2A is selected:
- UART 2 setup
- Avoid ETH_0 setup due to pin conflicts
- DTS addition for WNC-M14A2A
- Kconfig settings for modem driver
Signed-off-by: Michael Scott <mike@foundries.io>
Add a set of modem shell commands to support modem development.
Start with:
modem list: Lists all registered modems and related information
modem send <modem receiver index> <command>: Send command to modem
Signed-off-by: Michael Scott <mike@foundries.io>
The WNC-M14A2A (LTE / LTE-M) modem is presented as an Arduino-
compatible shield via AT&T's IoT Starter Kit v1.0. It was
originally intended to work with the FRDM-K64F board, but
in theory as long as the right pins are configured it can
work with any board that supports Arduino-compatible headers.
The driver utilizes the CONFIG_NET_OFFLOAD setting to avoid the
normal handling of IP packets, and instead uses a socket-like
UART interface to handle incoming and outgoing data.
Signed-off-by: Michael Scott <mike@foundries.io>
Modem drivers need a fast buffer-based receiver for passing data
back and forth from the UART to the driver. This provides an
efficient configuarable driver which merely sends and receives
but doesn't process the data, that's left up to the modem driver.
Signed-off-by: Michael Scott <mike@foundries.io>
