The current event implementation relies on a dedicated wait object,
which introduces several issues:
1. Increases memory usage
2. Complicates the event logic
3. Makes the API design less clean, as it requires a separate
nxevent_tickwait_wait() function
This patch removes the event’s dependency on the wait object
and eliminates the nxevent_tickwait_wait() API accordingly.
BREAKING CHANGE: this commit removed the nxevent_tickwait_wait function
so the related docs should be updated accordingly
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
The current event implementation uses semaphores for wait and post
operations. Since semaphores are relatively heavy-weight and intended
for resource-based synchronization, this is suboptimal.
So this patch replaced the semaphore-based mechanism with direct
scheduler operations to improve performance and reduce memory footprint.
This patch also introduce a new task state TSTATE_WAIT_EVENT to indicate
the task is waiting for a event.
BREAKING CHANGE: This commit introduced a new task state TSTATE_WAIT_EVENT
so apps/nshlib/, procfs/ and tools/pynuttx/nxgdb/ are needed to be updated accordingly.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Restore the use of critical sections to provide mutual exclusion
between event wait and post operations. This allows replacing the
heavier semaphore-based mechanism with direct scheduler operations
for synchronization.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Introduce early_syslog() to enable basic logging during the very early
boot or system down stages, when the full syslog subsystem is not yet
available.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
Add a new function nxsched_wakeup() to the scheduler,
which allows waking up a sleeping task before its timeout.
Signed-off-by: Chengdong Wang wangchengdong@lixiang.com
If the compiler optimization is disabled, the stack-usage of inlining functions will not be optimized.
In this case, force inlining can lead to stack-overflow (e.g.
qemu-armeabi-v7a-bl). This commit replaced the definition of the
always_inline_function and inline_function with the inline
keyword to avoid force-inlining.
Signed-off-by: ouyangxiangzhen <ouyangxiangzhen@xiaomi.com>
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>
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>
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>
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>
remove reference to non-existent readme in libc.
Pointing to the documentation page doesn't make sense in this case,
because it doesn't explain the use of `#undef XXX` for this case anyway.
Signed-off-by: raiden00pl <raiden00@railab.me>
clock_systime_timespec() always returns 0, so there is no need to
check the return value in the caller code, let us remove the return
value directly.
Signed-off-by: chao an <anchao.archer@bytedance.com>
Supports these Maxim/Analog Devices eeproms with a scratchpad:
DS2430,2431,2432,2433,28E04,28E07,28EC20.
For each type of an eeprom, you create a new driver.
Other than that, the driver is file oriented and supports seeks,
for example.
Signed-off-by: Stepan Pressl <pressl.stepan@gmail.com>
This commit introduces 2 new fields in the onewire_master_s struct:
uint64_t selected_rom,
uint64_t *available_roms.
The key point behind this is to allow onewire_search to capture all
devices on the bus into the kernel struct. While this commit is keeping
the old API (for the sake of not messing everything up), you don't have
to reimplement the search of all roms in very strange ways
(such as custom callbacks into the userspace).
Instead of that, a generic ioctl (only a function to be called from
the device driver) was implemented, that searches
the bus (for a particular 1wire family), saves it and then copies it
in a standard way to your application. The ioctl is called
ONEWIREIOC_GETFAMILYROMS.
Also as 1wire can interface multiple devices, a API telling the
driver which ROM to interface was missing, this commit fixes
this with the ONEWIREIOC_SETROM call.
The example usage is you first get all the devices on the bus
using ONEWIREIOC_GETFAMILYROMS. In your application, you choose
the correct device you want to talk to. Then you call
ONEWIREIOC_SETROM. And then writes, reads, ...
Signed-off-by: Stepan Pressl <pressl.stepan@gmail.com>
The wdog implementation redefined `list_node`, which could cause
conflicts or unexpected behavior when both `wdog/wdog.h` and
`list.h` are included in the same source file. This patch removes
the redundant definition to avoid such issues.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
Add crc8rohcincr() function to support byte-by-byte CRC8 calculation
using the ROHC polynomial (0x07) without XOR inversions. This is
useful for protocols that require incremental CRC accumulation,
such as GSM 07.10 (CMUX), where the CRC must be computed as frames
are parsed from circular buffers.
Changes include:
- New crc8rohcincr() function for single-byte incremental CRC
- Function takes current CRC value and returns updated CRC
- Uses same g_crc8_tab table as other ROHC functions
- No XOR inversions applied for proper accumulation
This allows protocols like CMUX to replace local CRC table
implementations with standard libc CRC functions while maintaining
correct incremental calculation behavior.
Signed-off-by: Halysson <halysson1007@gmail.com>
move both suspned and resume logic to nxsched_switch_context
Co-authored-by: yinshengkai <yinshengkai@xiaomi.com>
Signed-off-by: guoshengyuan1 <guoshengyuan1@xiaomi.com>
After irq_dispatch finished, the interrupt stack will be checked to
determine whether overflow occurs.
The relevant configuration reuses the configuration of stack overflow
detection during context switching.
Signed-off-by: guoshengyuan1 <guoshengyuan1@xiaomi.com>
Update the parameter names of the macro `list_for_every_entry_continue()`
to maintain consistent naming:
- list => entry
- head => list
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
Many times, context switching does not occur when the thread stack
memory is almost exhausted, so we need to mofify up_check_tcbstack to
accurately detect it.
Co-authored-by: Chengdong Wang <wangchengdong@lixiang.com>
Signed-off-by: guoshengyuan1 <guoshengyuan1@xiaomi.com>
Replace all nxsched_suspend/resume_*** with nxsched_switch_context
Delete nxsched_resume_scheduler in up_exit and call it uniformly in task_exit
Co-authored-by: yinshengkai <yinshengkai@xiaomi.com>
Signed-off-by: guoshengyuan1 <guoshengyuan1@xiaomi.com>
Currently the mdio communication is part of the monolithic 'full netdevs'.
This commit serves as an way to add modularity for the netdevs drivers.
A new upperhalf/lowerhalf mdio device comes with this commit that manages the data transfer ofer mdio interface.
Signed-off-by: Luchian Mihai <luchiann.mihai@gmail.com>
This commit fixes the incompatible pointer type issue due to
incompatible types of the `bitexchange_t` callback.
Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
In certain cases, when the event-wait thread is awakened,
it needs to know the specific mask bit that triggered it,
so that it can branch to different paths accordingly.
This patch introduces the nxevent_getmask function to address this requirement.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
Curernt implementation default semaphore max allowed value to SEM_VALUE_MAX.
In some cases, user may want to change this, so provide a function to do this: sem_setmaxvalue
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
There are cases that users do not want the event wait object to be allocated automatically
in the stack as a temporary varialbe in nxevent_tickwait, since multiple threads will
access the varialbe, they want to allocate the object as a global variable for safety
control or easy debug. To solve this problem, this patch add a new function nxevent_tickwait_wait
implementation to give user the chance to pass the global wait object to it.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
Add driver for the LAN865x 10BASE-T1S SPI MAC-PHY.
The driver is a lower-half driver to the OA-TC6 base driver.
Signed-off-by: michal matias <mich4l.matias@gmail.com>
Add driver for the Onsemi NCV7410 10BASE-T1S SPI MAC-PHY.
The driver also works for the NCN26010, which is an identical chip.
The driver is a lower-half driver to the OA-TC6 base driver.
Signed-off-by: michal matias <mich4l.matias@gmail.com>
Add base driver common for OPEN Alliance 10BASE-T1x MAC-PHY Serial Interface (OA-TC6)
protocol SPI MAC-PHYs.
Signed-off-by: michal matias <mich4l.matias@gmail.com>
This is an I2C driver for the Awinic AW9523B I/O expander. As well
as the supporting usual digital I/Os, this device features the
ability to drive LEDs directly, and can control the drive current
to each LED individually. The driver was derived from the PCA9555
driver, provides all the standard interfaces of an i/o expander
driver. It also features support for the special features of the
AW9523B through pin direction IOEXPANDER_DIRECTION_OUT_LED and
IOEXPANDER_OPTION_NONGENERIC with AW9523B_OPTION_* options.
The driver has a number of configurable features including interrupt
handling and a shadow register mode based on the PCA9555 driver,
plus new LED/dimming support.
Testing was done using an ESP32S3 host and I2C connection to the
Adafruit AW9523 breakout board.
Signed-off-by: Zik Saleeba <zik@zikzak.net>
Add mdio_phy_id_c45 macro. This macro allows encoding of additional information
needed for MMD access into the phy_id field of the mii_ioctl_data_s structure.
This macro is intended for use by user applications.
Add macros for decoding the phy_id encoded with the mdio_phy_id_c45 macro.
These macros are intended for use by network drivers implementing
SIOCxMIIREG commands.
Signed-off-by: michal matias <mich4l.matias@gmail.com>
This commit implements a set of commands to the i2s character
driver. The implemented commands allows getting and setting
parameters like data width, sample rate and number of channels for
both receiver and transmitter. If no ioctl is found, the command
is redirected to the lower driver implementation if it has the
ioctl callback registered.
Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.com>
- Added new part support for PCAL6416
- Added pullup/pulldown configuration support
Signed-off-by: Jouni Ukkonen <jouni.ukkonen@unikie.com>
Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
This commit removes existing support for the NCV7410 10BASE-T1S MAC-PHY.
The driver will be replaced by its generalized version with different organization.
The new driver has naming clashes with the old, therefore the old has to be removed first.
Signed-off-by: michal matias <mich4l.matias@gmail.com>
Add support for pthread_{get|set}concurrency support.
NuttX uses 1:1 threading model (every pthread is a kernel-managed thread),
so this function has no real effect on the scheduling behavior.
Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
Add support for sigsetjmp() and siglongjmp().
This implementation is build on top of setjmp() and longjmp().
sigsetjmp() in that case must be implemented as a macro otherwise
we lose setjmp context.
siglongjmp() is kept as inline function to satisfy the PSE52 VSX
tests requirement.
An alternative implementation requires writing these function in
assembly code for each architecture.
Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
