I added the function declarations of Ethernet functions that have a WEAK attribute. Although several Ethernet functions was called in rza1_emac.c, GR-LYCHEE don't have Ethernert feature. But there may be case that GR-LYCHEE uses LWIP feature.
In this case, since GR-LYCHEE will occur the build error, I addressed the error by defining the functions with a WEAK attribute. For reason of WEAK attribute, there is no influence in GR-PEACH and VK_RZ_A1H that have Ethernet feature.
I modified the debug message when using LWIP in RZ/A1 related mbed boards.
In eth_arch_enetif_init(), sys_thread_new() was called and task name is appeared as debug information, but task name for debug was a mistake.
For LWIP communication speedup in RZ_A1 related, I changed the below macro value and added the definition processing in RZ/A1 related header file(lwipopts_conf.h). For this reason, those macros are overrode by RZ/A1 related values, not default values.
In the below "features/FEATURE_LWIP" folders, same as Cortex-M targets, I changed the folder structure to combine files that can be shared as RZ/A1 related. And I renamed the folder name to "TARGET_RZ_A1XX" in order to make commonality explicit.
- "features/FEATURE_LWIP" folder
<before>
\features\FEATURE_LWIP\lwip-interface\lwip-eth\arch\TARGET_RZ_A1H
\features\FEATURE_LWIP\lwip-interface\lwip-eth\arch\TARGET_VK_RZ_A1H
<after>
\features\FEATURE_LWIP\lwip-interface\lwip-eth\arch\TARGET_RZ_A1XX
The K64F Ethernet driver installs an interrupt handler that sets thread
flags, and this could be called before the thread was initialised, so it
would use a NULL thread ID.
This triggers an RTX error-checking trap in debug builds, and could also
lead to other problems with received packets not being processed.
Adjusted so the RX interrupt handler does nothing if the thread isn't
initialised yet, and manually trigger a RX event flag after initialising
the thread in case any interrupts were ignored.
An alternative would have been to implement eth_arch_enable_interrupts,
but this mechanism is not present in the EMAC world - drivers will have
to start returning interrupts in their power up.
Fixes#5680
Target of LPC1769 links to mbed LPC1768.
The PinNames.h has conditional compile for the pin names.
LWIP lpc17xx emac driver modified to allow LPC1769 target
The function _eth_arch_low_level_input() is meant to pass data into
LWIP and to prepare the ethernet buffers to receive more data.
If the LWIP heap is empty and the call to pbuf_alloc() in
_eth_arch_low_level_input returns null, the ethernet receive buffers
are not updated to receive data. Because of this the ethernet RX
interrupt will not fire. Since the RX interrupt is the only thing that
triggers a call to _eth_arch_low_level_input(), the receive buffers
will never get cleared, and the device stops receiving data.
To prevent this from happening, this patch ensures that the function
_eth_arch_low_level_input() clears the receive buffers even if a new
pbuf for the data couldn't be allocated.
This issue can be reproduce by running the test
"features-feature_lwip-tests-mbedmicro-net-udp_echo_parallel"
and on the same machine running the below python script to flood the
device with UDP broadcast packets:
MY_IP = #ADD your local IP here
from socket import *
s = socket(AF_INET, SOCK_DGRAM)
s.bind((MY_IP, 1234))
s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
for _ in range(1000):
s.sendto("test data", ('255.255.255.255', 1234))
print("Message sent")
Based on lwip_ethernetif.c skeleton file,
use init, receive and transfer
functionality of SMSC9220 Ethernet driver
for the lightweight IP stack.
Receive mechanism is interrupt driven.
HW buffer sizes:
Tx = 4608 bytes (MTU)
Rx = 10560 bytes
lwIP fine tuning:
mbed-os/features/FEATURE_LWIP/lwip-interface/lwip/src/include/lwip/opt.h
Change-Id: I0ea95650c65fb32cafb5c2d3dde11420c61dba66
Signed-off-by: Gabor Kertesz <gabor.kertesz@arm.com>
The semaphore xTXDCountSem had the count to match the number of
resources available, but was being used as a binary semaphore in a
loop to listen for events. This patch updates the logic to make use of
the resource count.
With RTX5 the OS traps with an error if the a semaphore is released
more times than its count with an error similar to
"Semaphore 10000e6c error -17". Because xTXDCountSem is being used
as a binary semaphore it triggered this trap. With this patch the
semaphore is no longer used as a binary semaphore and no longer traps.
GCC have not been capable enough to catch some linker errors which arose when
ethernet support for LWIP was disabled. Checks have been added to make sure that
unrefrenced code is not linked in.
nsapi_ppp glue layer is made more transparent to public cellular API. Storage of IP
addresses is removed. PPP layer already stores the addresses, so we pass the pointer back
to the upper layers.
If PPP is not used, we provide dummy functions.
* state machine corrections
* adding various standard API methods
* Addition/revision/enhancement of the nsapi_ppp glue layer
* Turning off debug by default
TomoYamanaka
Jimmy Brisson
gorazd
Ashok Rao
Kevin Bracey
Mika Leppänen
Mahadevan Mahesh
Martin Kojtal
Laurent MEUNIER
Andrea Corrado
Chris Snow
Anna Bridge
bcostm
Piotr Grygorczuk
cyliangtw
ccli8
Deepika
Sam Grove
Russ Butler
gabker01
Tony Wu
Yuguo Zou
Hasnain Virk