If status is 0, both ip_hdr and proto_hdr will own a pointer to the
relevant IP and Protocol headers. In order to know which of ipv4/ipv6
and udp/tcp one will need to use respectively net_pkt_family(pkt) and
net_context_get_ip_proto(context).
Having access to those headers directly, many callbacks will not need
to parse the packet again no get the src/dst addresses or the src/dst
ports. This will be change after this commit.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Every now and then the 100ms delay for collecting IMEI data from the
modem, wasn't long enough and this presents a bad user experience.
Let's set it to 500ms which seems to be working all the time.
Signed-off-by: Michael Scott <mike@foundries.io>
During development of the WNC-M14A2A modem driver, I felt like the
initialization took too long to make the user wait. However, due
to the addition of other drivers such as OpenThread where delays
during startup are noticable, the modem startup time isn't so bad.
Let's remove the delay work which allows Zephyr to startup before
the modem is fully initialized.
NOTE: This also fixes a long standing bug where samples using the
modem would never know when it was ready (without waiting for the
interface up event). This change makes it always ready once the
sample starts.
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>
net_buf_linearize() used to clear the contents of output buffer,
just to fill it with data as the next step. The only effect that
would have is if less data was written to the output buffer. But
it's not reliable for a caller to rely on net_buf_linearize() for
that, instead callers should take care to handle any conditions
like that themselves. For example, a caller which wants to process
the data as zero-terminated string, must reserve a byte for it
in the output buffer explicitly (and set it to zero).
The only in-tree user which relied on clearing output buffer was
wncm14a2a.c. But either had buffer sizes calculated very precisely
to always accommodate extra trailing zero byte (without providing
code comments about this), or arguably could suffer from buffer
overruns (at least if data received from a modem was invalid and
filled up all destination buffer, leaving no space for trailing
zero).
Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
The comment was incorrect explaining why we were sending an
AT-command without waiting for a response (via a K_NO_WAIT timeout).
Let's correct the comment and avoid confusion.
Signed-off-by: Michael Scott <mike@foundries.io>
Remove overly complicated logic to skip incoming data if we were
still waiting on a previous set of data to be read.
This fixes a bug where an error during data receive could end up
with the modem ignoring all incoming data.
Signed-off-by: Michael Scott <mike@foundries.io>
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 changes were obtained by running a script created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:
1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
#define X Y)
3. Check if that name is also the name of a Kconfig option
3.a If it is, then do nothing
3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
(.c, .h, .ld)
Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.
Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
I have no idea what I was thinking when I wrote this.
But, it's an easy fix to remove the void * entirely.
Signed-off-by: Michael Scott <mike@foundries.io>
New shell implementation is on the way. For now old one and all
references are kept to be gradually replaced by new shell.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
The return of memset is never checked. This patch explicitly ignore
the return to avoid MISRA-C violations.
The only directory excluded directory was ext/* since it contains
only imported code.
Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
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>
Tomasz Bursztyka