This commit provided a better invdiv_u32 implementation on 64-bit architectures. The test results showed it is 25% faster than the original implementation on x86_64.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
This commit implemented optimized runtime-invariant integer division
proposed by T. Granlund and L. Montgomery. It can be used to convert the
hardware clock cycles to seconds, where the clock frequency is runtime-invariant.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
When closing a serial port an ongoing TX DMA transfer will be stopped. This can cause
one (or multiple) the following:
- dev->dmatx.length != 0
- dev->dmatx.nlength != 0
- stm32_dmaresidual returning a non-zero residual
This is caused by length/nlength not being set to 0 at startup or during closing.
In addition the DMA_SxNDTR register is not set to 0 at startup or during closing.
This commit solves the issue by setting the variables and register to 0 during closing.
Signed-off-by: Alexander Lerach <alexander@auterion.com>
arch/arm/stm32h7: Add review feedback regarding style
Removed non-needed spaces.
Aligned style of documentation.
Signed-off-by: Alexander Lerach <alexander@auterion.com>
The nxsched_switch_context() function should only be called
when a task switch actually occurs. The RISC-V architecture
already performs this call in riscv_perform_syscall(),
so this PR removed the redundant nxsched_switch_context() call in
up_switch_context().
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
Updates the common source code for the SPI peripheral used by
Espressif's RISC-Vs SoCs. This enables newer SoCs to be supported
in the future while maintaining backwards compatibility.
Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
Replace direct access to the g_waitingforsignal list with the
NuttX-defined macro list_waitingforsignal() to improve code
consistency and maintainability.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Simplify the CMake scripts by removing redundant logic to
improve code readability and maintainability.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
Introduce a new function nxsched_tick_expiration() to replace
nxsched_alarm_tick_expiration(). The new function provides a
common implementation that can be shared by both the alarm
and timer architectures.
This change reduces code duplication and provides a unified
function that can be directly reused.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
Improve nxclock_gettime(), to get the system time excluding
the time that the system is suspended, when the clockid is
CLOCK_MONOTONIC
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Replace direct usage of g_system_ticks with clock_increase_sched_ticks()
and clock_get_sched_ticks()
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
In the current NuttX kernel implementation, there is no function
to represent pure scheduler ticks.
The existing clock_systime_ticks() cannot serve this purpose,
because it keeps increasing even when the scheduler is not running.
This happens since the returned value reflects real hardware time:
as long as the timer or alarm hardware is active,
clock_systime_ticks() will continuously increase.
This patch introduces two new functions that provide access to
scheduler ticks — a counter that only increases when the scheduler
itself is running.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Clean up the CMake configuration by removing the obsolete
`BUILD_OOTCPP` guard. This variable is no longer required
since out-of-tree build handling is now managed via the
enhanced `nuttx_add_subdirectory()` with EXCLUDE support.
* Simplifies CMake configuration command.
* Avoids redundant or unused build options.
Signed-off-by: trns1997 <trns1997@gmail.com>
This commit refactors the I2S common driver for Espressif's RISC-V
SoCs. Previously, the peripheral was not working as expected.
Along with the new I2S character driver, this new I2S lower-half
driver can be easily tested using internal loopback between the
transmitter and receiver channels.
Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
Adds Kconfig knobs for the ESP32-S3 RX FIFO full threshold and timeout and wires them into the UART driver.
Clears RX FIFO overflow interrupts by resetting the hardware FIFO so reception resumes cleanly.
Signed-off-by: Thiago Finelon <thiago.sfinelon@gmail.com>
Nuttx currently has 2 types of sleep interfaces:
1. Signal-scheduled sleep: nxsig_sleep() / nxsig_usleep() / nxsig_nanosleep()
Weaknesses:
a. Signal-dependent: The signal-scheduled sleep method is bound to the signal framework, while some driver sleep operations do not depend on signals.
b. Timespec conversion: Signal-scheduled sleep involves timespec conversion, which has a significant impact on performance.
2. Busy sleep: up_mdelay() / up_udelay()
Weaknesses:
a. Does not actively trigger scheduling, occupy the CPU loading.
3. New interfaces: Scheduled sleep: nxsched_sleep() / nxsched_usleep() / nxsched_msleep() / nxsched_ticksleep()
Strengths:
a. Does not depend on the signal framework.
b. Tick-based, without additional computational overhead.
Currently, the Nuttx driver framework extensively uses nxsig_* interfaces. However, the driver does not need to rely on signals or timespec conversion.
Therefore, a new set of APIs is added to reduce dependencies on other modules.
(This PR also aims to make signals optional, further reducing the code size of Nuttx.)
Signed-off-by: chao an <anchao.archer@bytedance.com>
Nuttx currently has 2 types of sleep interfaces:
1. Signal-scheduled sleep: nxsig_sleep() / nxsig_usleep() / nxsig_nanosleep()
Weaknesses:
a. Signal-dependent: The signal-scheduled sleep method is bound to the signal framework, while some driver sleep operations do not depend on signals.
b. Timespec conversion: Signal-scheduled sleep involves timespec conversion, which has a significant impact on performance.
2. Busy sleep: up_mdelay() / up_udelay()
Weaknesses:
a. Does not actively trigger scheduling, occupy the CPU loading.
3. New interfaces: Scheduled sleep: nxsched_sleep() / nxsched_usleep() / nxsched_msleep() / nxsched_ticksleep()
Strengths:
a. Does not depend on the signal framework.
b. Tick-based, without additional computational overhead.
Currently, the Nuttx driver framework extensively uses nxsig_* interfaces. However, the driver does not need to rely on signals or timespec conversion.
Therefore, a new set of APIs is added to reduce dependencies on other modules.
(This PR also aims to make signals optional, further reducing the code size of Nuttx.)
Signed-off-by: chao an <anchao.archer@bytedance.com>
The code clearly expects the output of the 'maint print
remote-registers' to be indented by white-space character but at least
in my case it is not. This changes the match to consume any number of
white-space characters before it encounteres the register name.
Signed-off-by: Karel Kočí <cynerd@email.cz>
Add simple single ID mask filter. Only pkts with set CAN ID are accepted. This works for both STD and EXT CAN ID.
Signed-off-by: haitomatic <hai.to@unikie.com>
TODO: Fix sama5 arch the same way stm32 to avoid compiling serial drivers
case no serial ports are used.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
This config doesn't have any STM32_USART enabled, but because it
have CDC_ACM if we disable CONFIG_SERIAL we are getting others
dependence error. So the solution here was enable the serial port
CONFIG_STM32_USART3.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
This can board profile doesn't use serial, but the syslog still
using up_putc() that doesn't exist now that stm32_serial.c is not
compiled.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
After fixing stm32 to not compile stm32_serial.c when STM32_USART
is not enabled, we need fix the lwl_console driver to include the
up_putc().
Signed-off-by: Alan C. Assis <acassis@gmail.com>
When SEMIHOST_SYSLOG is enabled it creates its own up_putc() function
however the stm32_serial.c also creates this same function, even
when all STM32_USARTs are disabled. Fix patch fixes this issue.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
Add a new ioctl to get the count of paninfo
The framebuffer is usually in high-speed RAM. Getting the paninfo
count can help us get the idle state of the framebuffer so that we
can temporarily use this memory.
Signed-off-by: yushuailong1 <yushuailong1@xiaomi.com>
Updates MCUBoot version and default address for virtual E-Fuse, depending
if MCUBoot is enabled.
Signed-off-by: Filipe Cavalcanti <filipe.cavalcanti@espressif.com>
Make sure interrupt stack is colored before IRQ is enabled.
Currently, after calling irq_initialize in nx_start to
enable interrupts, there is still a period of execution
path before the interrupt stack is colored.
Signed-off-by: guoshengyuan1 <guoshengyuan1@xiaomi.com>
`up_check_intstack` exists only when CONFIG_ARCH_INTERRUPTSTACK
is greater than 0, so the irq should first determine whether
CONFIG_ARCH_INTERRUPTSTACK is greater than 0 to determine
whether up_check_intstack can be called.
Signed-off-by: guoshengyuan1 <guoshengyuan1@xiaomi.com>
The current implementation does not call
nxsched_switch_context() exactly when a
task switch occurs.
This patch fixes the issue by placing the
call at the correct location.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
remove not related comments from libs/libbuiltin/CMakeLists.txt and
libs/libxx/CMakeLists.txt. These are a copy paste from a Makefile
which doesn't make sense for these files.
Signed-off-by: raiden00pl <raiden00@railab.me>
