Fixes is stuttering output.
The use of the semaphore was causing blocking
on non blocking callers. This ensured that
the TX DAM would be restated, but when it
was switched to trywait in 660ac6, it left
data in the xmit queue unsent.
This solution removes the semaphore and restart
the DMA on completion if there is more data in
the xmit queue to be sent.
chip/sam_emac.c:3754:11: error: 'struct sam_emac_s' has no member
named 'phytype'
3754 | if (priv->phytype == SAMV7_PHY_KSZ8061)
| ^~
make[3]: *** [Makefile:167: sam_emac.o] Error 1
Member phytype is available only if CONFIG_NETDEV_PHY_IOCTL and
CONFIG_ARCH_PHY_INTERRUPT is set.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Fixes stuttering output.
The use of the semaphore was causing blocking
on non blocking callers. This ensured that
the TX DAM would be restated, but when it
was switched to trywait in 8362e314, it left
data in the xmit queue unsent.
This solution removes the semaphore and restart
the DMA on completion if there is more data in
the xmit queue to be sent.
This prevents dma stop operations called of a completion
call back from rentering, the callback and ensures that
the call back will see the idle state.
Since picolibc used by clang-17 does not provide an implementation of libm,
if you want to use clang, please must specify a libm as an option.
Signed-off-by: chao an <anchao@xiaomi.com>
armv6-m/arm_dumpnvic.c: In function 'arm_dumpnvic':
armv6-m/arm_dumpnvic.c:67:13: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'uint32_t' {aka 'long unsigned int'} [-Wformat=]
67 | _info(" IPR%d: %08x IPR%d: %08x IPR%d: %08x IPR%d: %08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
armv6-m/arm_dumpnvic.c:67:27: note: format string is defined here
67 | _info(" IPR%d: %08x IPR%d: %08x IPR%d: %08x IPR%d: %08x\n",
| ~~~^
| |
| unsigned int
| %08lx
Signed-off-by: chao an <anchao@xiaomi.com>
chip/stm32_ethernet.c:2014:7: warning: variable 'i' set but not used [-Wunused-but-set-variable]
2014 | int i;
| ^
1 warning generated.
Signed-off-by: chao an <anchao@xiaomi.com>
To avoid losing the first frame, the set_buf needs to excute first. At the same time, imgdata->start_capture should excuted before the imgsensor->start_capture.
Signed-off-by: yaojingwei <yaojingwei@xiaomi.com>
Adds support for hardware timestamping of received Ethernet packets.
The timestamp is available to applications using socket option SO_TIMESTAMP.
Optionally, the Ethernet PTP timer can be used as system high-resolution RTC.
In this mode it supports fine resolution rate adjustment.
Alternatively other time source for CLOCK_REALTIME can be used, and the
PTP timestamps are converted by sampling the clocks and computing the
difference. This results in a few microseconds of uncertainty.
If using flow control with a high CTS the thread may be
blocked forever on the second transmit attempt due to waiting
on the txdma semaphore. The calling thread can then never
make progress and release any resources it has taken, thus
may cause a deadlock in other parts of the system.
The implementation differs in behavior from interrupt-driven
TX. It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to
do next.
If using flow control with a high CTS the thread may be
blocked forever on the second transmit attempt due to waiting
on the txdma semaphore. The calling thread can then never
make progress and release any resources it has taken, thus
may cause a deadlock in other parts of the system.
The implementation differs in behavior from interrupt-driven
TX. It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to
do next.
If using flow control with a high CTS the thread may be
blocked forever on the second transmit attempt due to waiting
on the txdma semaphore. The calling thread can then never
make progress and release any resources it has taken, thus
may cause a deadlock in other parts of the system.
The implementation differs in behavior from interrupt-driven
TX. It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to
do next.
If using flow control with a high CTS the thread may be blocked forever
on the second transmit attempt due to waiting on the txdma semaphore.
The calling thread can then never make progress and release any
resources it has taken, thus may cause a deadlock in other parts of the
system.
The implementation differs in behavior from interrupt-driven TX and the
STM32F7 TXDMA . It should not implicitly wait on a taken semaphore but
return immediately and let the upper layers decide on what to do next.
Some APIs are implemented both in common code and CHIP-specific code,
and the link needs to be based on the implementation in CHIP, so move
NUTTX_CHIP_ABS_DIR before common src.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
These flags are not used in the code.
SERIAL_HAVE_RXDMA and SERIAL_HAVE_TXDMA flags are used instead.
STM32_UART_TXDMA flag is not even defined in Kconfig
