This commit adds two new IOCTL commnands for ADC driver. Command
ANIOC_RESET_FIFO resets FIFO head and tail which causes the driver
to wait for the new data to be received. Calling this command before
reading ADC data in user space ensures that the read data are newly
sampled.
Command ANIOC_SAMPLES_ON_READ return the number of read channels in
the buffer. This can be useful in nonblocking mode when the application
needs to get the samples received before the app was started.
Both IOCTL commands are used only in generic driver section only and do
not have any effect on existing architecture specific drivers.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Fix a wrong assertion in:
```
commit 98ec46d726
Author: YAMAMOTO Takashi <yamamoto@midokura.com>
Date: Tue Jul 20 09:10:43 2021 +0900
tcp_send_buffered.c: fix iob allocation deadlock
Ensure to put the wrb back onto the write_q when blocking
on iob allocation. Otherwise, it can deadlock with other
threads doing the same thing.
```
I forget to submit this with https://github.com/apache/incubator-nuttx/pull/4257
This commit changes the FLexPWM driver for iMXRT MCU so that LDOK bits in
Master Control Register are set at once after all channels are configured.
Setting LDOK bit enables the driver to load prescaler, modulus and PWM
values of corresponging submodule and start PWM output. Setting all bits
at once instead of doing it separately can help avoiding the channels to
be out of sync with each other.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Many duplicate code when more chips add-in,
follow arch/arm/include/irq.h method, use chip/irq.h instead.
Change-Id: I42f516c1dda68e973939c669f627c457cd0bc65e
In levelx(2,3,4,5)_handler, first need to save sp in a12,
then after dispatch_c_isr we can restore sp from a12.
Change-Id: Idb6b64a782da866670a4db80b33435a9b63f02c3
Some toolchain such as xtensa-xcc is unrecognize with constraint letter 'I',
letter 'i' is more common in GNU assembler.
Change-Id: I00f6a33fd7a5f2b95508c683e9954d402b68755f
In config with no "CONFIG_SPINLOCK", include arch/spinlock.h will lead to
build error as multi definition with spinlock_t. Nuttx/spinlock.h will
include arch/spinlock.h when needed.
Change-Id: I33b48503f679ec79af3a0ef1f0fb1536aaf1ce7c
When trying to reproduce a reported issue with telnetd,
it took me a bit to find out a working config with telnetd.
I don't want to repeat the process again in future.
OTOH, I don't feel it's worth to have a separate config for this.
Enable a few things convenient for testing network stuff
- telnetd
- iperf
- NET_STATISTICS
- Bump NET_NACTIVESOCKETS
Stack related
- Enable interrupt stack
- Tweak stack sizes
- STACK_COLORATION
- SYSTEM_STACKMONITOR
Debug stuff
- Enable assertions
- Enable some WARN/ERROR logs
Misc
- Disable C++ as it does nothing for the rest of the config and
it's expensive (involving a download of the library)
With an applictation using mbedtls, I observed retransmitted segments
with corrupted user data, detected by the peer tls during mac processing.
Looking at the packet dump, I suspect that a wrb which has been put back
onto the write_q for retransmission was partially sent but fully acked.
Note: it's normal for a retransmission to be acked before sent.
In that case, the bug fixed in this commit would cause the wrb have
a wrong sequence number, possibly the same as the next wrb. It matches
what I saw in the packet dump. That is, the broken segments contain the
payload identical to one of the previous segment.
If threads are blocking for throttled allocation,
g_throttle_sem.semcount doesn't represent the number of
usable IOBs well.
Note: For non-throttled allocations, the g_iob_committed mechanism
is a rescue. But there is no equivalent for throttled allocations.
Summary:
- I noticed that the RNDIS networking is unstable when running
nxplayer + command execution via telnet
- This commit is a workaround to fix this issue by disabling
CONFIG_TCP_WRITE_BUFFERS. Also, CONFIG_SENDFILE_BUFSIZE is
increased to improve the webserver performance.
Impact:
- spresense:rndis_smp only
Testing:
- Tested with nxplayer, telnetd and webserver
Signed-off-by: Masayuki Ishikawa <Masayuki.Ishikawa@jp.sony.com>
