Although the LED might be RGB-only, the LED data is packed in a
32-bit long variable and, then, this is the default size of a LED
pixel to define the 'WS2812_RW_PIXEL_SIZE' macro. Please note that
the lower-half driver will deal with the case of the addressable
LED being 3 or 4-pixel sized.
The RMT (Remote Control) character driver allows to use the RMT
peripheral (usually, a one-wire peripheral dedicated to driving
IR remote control) as a character driver.
Please note that this perpiheral depends on the lower-half specific
driver implementation.
Add a static port-based VLAN configuration for KSZ9477 switch. This doesn't
use the VLAN tagging, but is a switch's internal mechanism to simply configure
if the packet forwarding is allowed from one port to another.
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
The Goldfish FB register should be optimized by considering the need to pass in parameters for base and irq.
Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
The opening and closing of the window has been associated with the opening and closing of fb, but the LCD has not yet been optimized. The window will only open when sim_x11openwindow is called, and similarly, the window will only close when sim_x11closewindow is called.
Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
-The qemu wifi fucntion only supports the STA mode and the following
operations:
wapi mode wlan0 2
wapi scan wlan0
wapi psk wlan0 password 3
wapi essid wlan0 wifi_name 1
wapi show wlan0
wapi disconnect wlan0
-Eanble the virtual wifi function with the MACRO `CONFIG_DRIVERS_WIFI_SIM`.
Signed-off-by: liqinhui <liqinhui@xiaomi.com>
Previously ipv6 multi-address support decided packet source
address based on its destination. This doesn't work if NuttX
device has multiple addresses within same subnet.
Instead when a packet is a response to existing connection,
the source address should be based on the destination address
used in the received packet.
There is a problem with the current elf loader for risc-v: when a pair of
PCREL_HI20 / LO12 relocations are encountered, it is assumed that these
will follow each other immediately, as follows:
label:
auipc a0, %pcrel_hi(symbol) // R_RISCV_PCREL_HI20
load/store a0, %pcrel_lo(label)(a0) // R_RISCV_PCREL_LO12_I/S
With this assumption, the hi/lo relocations are both done when a hi20
relocation entry is encountered, first to the current instruction (addr)
and to the next instruction (addr + 4).
However, this assumption is wrong. There is nothing in the elf relocation
specification[1] that mandates this. Thus, the hi/lo relocation always
needs to first fixup the hi-part, and when the lo-part is encountered, it
needs to find the corresponding hi relocation entry, via the given "label".
This necessitates (re-)visiting the relocation entries for the current
section as well as looking for "label" in the symbol table.
The NuttX elf loader does not allow such operations to be done in the
machine specific part, so this patch fixes the relocation issue by
introducing an architecture specific cache for the hi20 relocation and
symbol table entries. When a lo12 relocation is encountered, the cache
can be consulted to find the hi20 part.
[1] https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-elf.adoc
we can use uart to debug nuttx,like debugger:
1. read/write memory
2. Use watchpoint,breakpoint,single step.
use up_debugpoint api
3. Ctrl+c to stop, continue, or single step.
hold uart send and receive
4. register a panic event, when crash or assert/panic, we use uart to
debug.
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Usage:
1. CONFIG_FS_PROCFS_MAX_STACK_RECORD > 0, such as 32,
2. add '-finstrument-functions' to CFLAGS for What you want to check
stack.
3. mount porcfs
4. cat /proc/<pid>/stack will print backtace & size
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Add registration function instrumentation API,
which can achieve instrumentation of entering and
exiting functions through the compiler's functionality.
We can use CONFIG_ARCH_INSTRUMENT_ALL to add instrumentation for all
source, or add '-finstrument-functions' to CFLAGS for Part of the
source.
Notice:
1. use CONFIG_ARCH_INSTRUMENT_ALL must mark _start or entry noinstrument_function,
becuase bss not set.
2. Make sure your callbacks are not instrumented recursively.
use instrument_register to register entry function and exit function.
They will be called by the instrumented function
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
Virtio driver can used this api to judge whether the this feature
is supported by both virtio driver and device.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Previously CONFIG_USBDEV_SOFINTERRUPT existed in many platform
drivers but did nothing. This commit adds a callback function
usbdev_sof_irq() that can be used to take action on this interrupt.
A new locking mechanism: read/write locks
When there is a writer it is not possible to put on a read lock or a write lock; when there is a reader it is possible to reenter the read lock but not the write lock.
Writers are exclusive locks, readers are shared locks.
At the same time through the waiter count to determine whether there is currently a blocked task, if there is then in the unlock time to wake up all the waiter, through the priority of the competition to complete the blocked lock execution.
For example:
When we have a reader blocking two waiter writers, when the reader is unlocked it wakes up both writers. The writer with higher priority wakes up and checks for a successful condition and locks the lock, the second writer wakes up and fails to check for a condition and continues to block the lock.
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
1. Configurable mapping of virtual address to psram physical address
2. Access SPIRAM memory at high physical address through bank switching
Signed-off-by: chenwen@espressif.com <chenwen@espressif.com>
Adds support for POSIX interface open_memstream() that allows writing
to dynamic memory buffer stream. The stream is dynamically reallocated
as the buffer grows with initial size set to zero.
The caller has to free the buffer after the stream is closed.
The implementation uses fopencookie() for custom stream operations and
callbacks.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
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>
This moves all the public POSIX semaphore functions into libc and with
this most of the user-space logic is also moved; namely cancel point and
errno handling.
This also removes the need for the _SEM_XX macros used to differentiate
which API is used per user-/kernel mode. Such macros are henceforth
unnecessary.
After this, RISC-V fully supports the kmap interface.
Due to the current design limitations of having only a single L2 table
per process, the kernel kmap area cannot be mapped via any user page
directory, as they do not contain the page tables to address that range.
So a "kernel address environment" is added, which can do the mapping. The
mapping is reflected to every process as only the root page directory (L1)
is copied to users, which means every change to L2 / L3 tables will be
seen by every user.
The driver's main purpose is to support the porting of the open source
component optee_client (https://github.com/OP-TEE/optee_client) to nttux.
The basic function of the driver module is to convert the REE application layer data and send it to the TEE through rpmsg.
The main functions include
1 driver registration.
we need to register a device driver(/dev/tee0) through optee_register function.
2 open the driver
3 ioctl the driver
The ioctl command passes different parameters and commands, and interacts with the TEE through rpmsg.
4 close the driver
Signed-off-by: hujun5 <hujun5@xiaomi.com>
A segmentfault might happen when read/write/unlink ops called without an open
ops called because it bind ept's ops in rpmsgblk_open_handler.
proxy> rm /dev/ram1
segmentfault
proxy> ls /dev/ram1
segmentfault
Signed-off-by: liaoao <liaoao@xiaomi.com>
PR #11165 causes an unnecessary regression; task_delete no longer works,
if the deleted task is from another group.
The logic that prevents this comes from:
nxnotify_cancellation() ->
tls_get_info_pid() ->
nxsched_get_stackinfo()
Which checks for permissions, which does not make sense in this case since
it is the kernel asking for the stack information.
Fix this by partially reverting 11165 and implementing a direct path for
the kernel to query for any tasks TLS.
Commit 9244b5a737 added support
for non-standard field si_user that is useful for passing context
pointers to signal handlers.
This commits makes it work for all signals, not just SA_KERNELHAND.
Previously si_user for normal signals was uninitialized garbage.
There are ICs available on the market that integrate various power inverter
features. The driver for such a device must be tightly coupled to a FOC device
as using it as a separate device doesn't make sense.
Adds support for timestamping received UDP packets, either in
hardware or in kernel. Builds on the existing support of SO_TIMESTAMP
for SocketCAN.
Implementation uses CLOCK_REALTIME for timestamping to match the
behavior of Linux. This could be made configurable in future if needed.
The task files should consult the "spawn action" and "O_CLOEXEC flags"
to determine further whether the file should be duplicated.
This PR will further optimize file list duplicating to avoid the performance
regression caused by additional file operations.
Signed-off-by: chao an <anchao@xiaomi.com>
This moves task / thread cancel point logic from the NuttX kernel into
libc, while the data needed by the cancel point logic is moved to TLS.
The change is an enabler to move user-space APIs to libc as well, for
a coherent user/kernel separation.
Previous adjtime() implementation was limited to adjusting system
timer tick period. This commit reimplements the internals to use
a kernel watchdog timer. Platform-independent part of the code now
works also for adjusting hires RTC and tickless timer rate.
User code facing API is unchanged. Architecture code API has changed:
up_adj_timer_period() is replaced by up_adjtime().
Other improvements:
- Support query of remaining adjustment by passing NULL to first
argument of adjtime(). This matches Linux behavior.
- Improve resolution available for architecture driver, previously
limited to 1 microsecond per tick. Now 1 nanosecond per second.
In order to achieve better scalability, change the stride
from pixel mode to byte mode.For example, in the case of RGB888
mode with 466 pixels in width and a 4-byte aligned buffer,it is
only necessary to extend the buffer of one line from 1398 bytes
to 1400 bytes, instead of extending it to 1404 bytes.
Signed-off-by: rongyichang <rongyichang@xiaomi.com>
These values are board-specific properties that must be known on the application side.
Until now, these values had to be hardcoded on the application side.
When we record data and dump data, they are all executed within the system,
and there is no need to consider the issue of big or small endianness.
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
1. Supporting `SIOCSIFADDR` and `SIOCDIFADDR` with Linux in6_ifreq struct to manage ipv6 addresses.
Ref: https://man7.org/linux/man-pages/man7/netdevice.7.html
2. Supporting alias like 'eth0:0' for multiple IPv6 addresses, to keep previous ioctl `SIOCGLIFADDR`, `SIOCSLIFADDR`, `SIOCGLIFNETMASK` and `SIOCSLIFNETMASK` working.
Ref: https://man7.org/linux/man-pages/man8/ifconfig.8.html
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Note that user-space related code, like procfs and lifreq related ioctl commands, are not touched in this commit.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Compatible with previous usage, because may network drivers are using old member name to print logs, and there's no significant need to change them now.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
We reuse the linux platform code when adapting the matter library, in order to compile through, so first add the ethtool related definition
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
1. fs_epoll: try again when epoll_teardown() return 0
when poll_notify() called larger than twice when epoll_wait() blocked
in the eph->sem, the semcount will be larger than 1 when epoll_wait()
unblocked and will return 0 directly at the next epoll_wait.
So retry to wait the eph->sem again when epoll_teardown return 0.
2. fs_epoll: poll_setup the fd again even this fd got non-expected event
Some poll implementations need call poll_setup again when their internal
states changed (e.g., local socket), so should add the fd to the epoll
teardown list and poll_setup again at the next epoll_wait even this fd
got the user non-expected event.
Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
Add a minimal implementation to suppress warnings when building
application code shared with other operating systems.
For example:
When building with a c++ compiler and GCC 12.2.0, the following warning is emitted:
nuttx/include/spawn.h:178:40: warning: statement has no effect [-Wunused-value]
178 | #define posix_spawnattr_destroy(attr) (0)
VELAPLATFO-18473
refs:
https://man7.org/linux/man-pages/man2/fcntl.2.html
If the FD_CLOEXEC bit is set, the file descriptor will automatically
be closed during a successful execve(2).
(If the execve(2) fails, the file descriptor is left open.)
modify:
1. Ensure that the child task copies all fds of the parent task,
including those with O_CLOEXE.
2. Make sure spawn_file_action is executed under fd with O_CLOEXEC,
otherwise it will fail.
3. When a new task is activated or exec is called, close all fds
with O_CLOEXEC flags.
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
Add support for POSIX interface fmemopen(). This interface open a memory
buffer as a stream and permits access to this buffer specified by mode.
This allows I/O operations to be performed on the memory buffer.
The implementation uses fopencookie() for custom stream operations and
callbacks.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
The definition of __ASSERT has special define in some OS and librarys,
rename to __ASSERT__ to avoid conflict
Signed-off-by: chao an <anchao@xiaomi.com>
Handle task spawn attributes as task spawn file actions are handled.
Why? This removes the need for sched_lock() when the task is being
spawned. When loading the new task from a file the scheduler can be
locked for a VERY LONG time, in the order of hundreds of milliseconds!
This is unacceptable for real time operation.
Also fixes a latent bug in exec_module, spawn_file_actions is executed
at a bad location; when CONFIG_ARCH_ADDRENV=y actions will point to the
new process's address environment (as it is temporarily instantiated at
that point). Fix this by moving it to after addrenv_restore.
There is a risk that interfaces such as psock_ioctl/psock_setsockopt
will cause paramete to be not four-byte aligned after calculating the
offset, so align the length of the structure with parameters by four
bytes.
Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
This commit adds support for custom stream via fopencookie function.
The function allows the programmer the create his own custom stream
for IO operations and hook his custom functions to it.
This is a non POSIX interface defined in Standard C library and implemented
according to it. The only difference is in usage of off_t instead of
off64_t. Programmer can use 64 bits offset if CONFIG_FS_LARGEFILE is
enabled. In that case off_t is defined as int64_t (int32_t otherwise).
Field fs_fd is removed from file_struct and fs_cookie is used instead
as a shared variable for file descriptor or user defined cookie.
The interface will be useful for future fmemopen implementation.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
porting from https://github.com/kokke/tiny-bignum-c commit ac136565378c624365e0f5f556d386b3966bff32 and adapting to the nuttx
Signed-off-by: makejian <makejian@xiaomi.com>
Support smp function call, calling smp_call_function allows
a specific core to execute a function. It should be noted
that there should be no waiting operations in the executed
function.
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
both functions aren't suitable to be put into libc,
because they call the kernel internal functions directly.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This path just for modify Mac sim-02 issue.
The compiler require the firt paramter of atomic_compare_exchange_strong
is atomic type and second parameter is int type.
Signed-off-by: TaiJu Wu <tjwu1217@gmail.com>
spinlock.c:
Implement read write spinlock.
Readers can take lock simultaneously but only one writer can take lock.
irq_spinlock.c:
Align g_irq_spin_count.
If the lock is NULL, the caller will get global lock (e.g. g_irq_spin) and spin_lock_irqsave() support nest on the same CPU.
If the CPU can write lock, it can call write_lock_irqsave() again (e.g. support nest).
Signed-off-by: TaiJu Wu <tjwu1217@gmail.com>
Co-authored-by: David Sidrane <David.Sidrane@Nscdg.com>
The BIT macro is widely used in NuttX,
and to achieve a unified strategy,
we have placed the implementation of the BIT macro
in bits.h to simplify code implementation.
Signed-off-by: hujun5 <hujun5@xiaomi.com>
so the user could register fb device directly instead
go through the sequence of up_fbinitialize/up_fbgetvplane
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
test config: ./tools/configure.sh -l qemu-armv8a:nsh_smp
Pass ostest
No matter big-endian or little-endian, ticket spinlock only check the
next and the owner is equal or not.
If they are equal, it means there is a task hold the lock or lock is
free.
Signed-off-by: TaiJu Wu <tjwu1217@gmail.com>
Co-authored-by: Xiang Xiao <xiaoxiang781216@gmail.com>
clock_getcycle always returns an incremented cycle value
If the hardware does not support perf event it will use arch_alarm's up_perf_gettime
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
we can mount a zipfile in nuttx use mount command like this:
mount -t zipfs -o /data/test.zip /zip
The zipfs is a read only file system,The advantage is that it
does not occupy additional space when reading the decompressed file.
When used, reading and decompression operations are simultaneous.
The known disadvantage is that when using seek to read forward,
it will reopen and cause slow speed problems.
Signed-off-by: anjiahao <anjiahao@xiaomi.com>
For programs with the dependencies logic in pthread_once callback , using global locks may cause deadlock:
task A
pthread_once()
|
|-> nxrmutex_lock(&g_lock);
-> init_routine(); // callback to wait task B
task B
pthread_once()
|
->nxrmutex_lock(&g_lock); // Deadlock
->init_routine(); // hold resource to wake up task A
Signed-off-by: hujun5 <hujun5@xiaomi.com>
The function name comes from list.h inside Linux,
but rewrite from scratch to avoid the copyright issue.
Since many developers are familiar with Linux list API.
Signed-off-by: ligd <liguiding1@xiaomi.com>
convert from body coordinate system to right-hand
coordinate system.
Example:
Compared to the standard coordinate system,
the x-axis and y-axis are interchanged and have opposite directions,
the z-axis remains normal.
body coordinate ----> right-hand coordinate
+x +y
| |
| |
| |
| |
-y<-------. .------>+x
/ /
/ /
/ /
/ /
+z +z
So for the above conversion, using "P3" to represent transformation relationships
The front is 1 0 2, which represents the y x z axis.
The standard order is 0 1 2, so y and x are interchanged.
The following -1 1 1 indicates the direction of the axis.
The standard is 1 1 1. Because the current y-axis is opposite to
the standard x-axis, it is -1.
static const struct sensor_axis_map_s g_remap_tbl[] =
{
{ 0, 1, 2, 1, 1, 1 }, /* P0 */
{ 1, 0, 2, 1, -1, 1 }, /* P1 */
{ 0, 1, 2, -1, -1, 1 }, /* P2 */
{ 1, 0, 2, -1, 1, 1 }, /* P3 */
{ 0, 1, 2, -1, 1, -1 }, /* P4 */
{ 1, 0, 2, -1, -1, -1 }, /* P5 */
{ 0, 1, 2, 1, -1, -1 }, /* P6 */
{ 1, 0, 2, 1, 1, -1 }, /* P7 */
};
you can call the function sensor_remap_vector_raw16 and pass P3 parameters
to perform the conversion.
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
1.check the rpmsg name when clk_register.
2.clk_get rpmsg clk print error:
clk/clk.c:1231:3: runtime error: null pointer passed as argument 2, which is declared to never be null
3.fix some function miss keyword FAR.
4.clk_disable_unused may disable rpmsg clk which disable the clk that maybe used by others
Signed-off-by: dulibo1 <dulibo1@xiaomi.com>
* build-globals.sh
- Only look in the nuttx for external symbols used when loading
dynamic shared objects
* include/elf64.h
- Correct the type of fields in the Elf64_Phdr structure
* libs/libc/dlfcn/lib_dlclose.c
- Distinguish between ET_DYN and other objects as the former
has both text and data in a single allocation to reserve
GOT offsets
* libs/libc/dlfcn/lib_dlopen.c
- Code formatting
* libs/libc/modlib/modlib_bind.c
- Distinguish between relocation entry sizes by section type
- Handle RELA style relocations
* libs/libc/modlib/modlib_globals.S
- Formatting fixes
- Symbols should not be weak - they exist or they don't
* include/nuttx/lib/modlib.h
- Add an inidcator to module_s to distinguish between ET_DYN and other
* libs/libc/modlib/modlib_load.c
- ET_DYN objects need to keep the relative displacement between the text
and data sections due to GOT references from the former to the latter.
This also implies that linking may require modification from the default
for the shared objects being produced. For example, default alignment may
mean nearly 64K of wasted space.
* libs/libc/modlib/modlib_unload.c
sched/module/mod_rmmod.c
- Distingusih between freeing of ET_DYN storage and other as the former
is a single allocation.
* libs/libc/modlib/mod_insmod.c
- Cater for ET_DYN objects having init and preinit sections
There is a problem when vfork() calls execv() (or execl()) to start a new application:
When the parent thread calls vfork() it receives and gets the pid of the vforked task,
and not the pid of the desired execv'ed application.
see issue #3334
Signed-off-by: yangyalei <yangyalei@xiaomi.com>
It uses the memory block as the serial communication medium, which can communicate between different processes or different CPUs
Using the following configuration, the cross-core communication rate of 200MHz cortex-M55 is about 461KB/s
RAM_UART_BUFSIZE=1024
RAM_UART_POLLING_INTERVAL=100
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
Corresponds to the problem of name resolution with different IP
address types in networks where only one of IPv4 or IPv6 can be
used due to physical layer reasons (e.g., LTE networks).
Fix the problem when vfork() calls execv() (or execl()) to start a new application:
When the parent thread calls vfork() it receives and gets the pid of the vforked task,
and not the pid of the desired execv'ed application.
issue #3334
Signed-off-by: yangyalei <yangyalei@xiaomi.com>
These values are only provided by bream private message, should not include in
NMEA 0183 standard struct.
Signed-off-by: haopengxiang <haopengxiang@xiaomi.com>
refact vsync queue to support multi fb poll and overlay poll.
Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Signed-off-by: rongyichang <rongyichang@xiaomi.com>
Add usb_fs driver so that userspace can directly transfer USB packets
through the EP node. ADB, Fastboot, MTP will use usb_fs, these class
driver only need to provide the descriptors and register the usb_fs device.
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
vfork use waitpid hang father process,
but waitpid release child processs information by default.
So when user call wait, it return errno 10.
Signed-off-by: yangyalei <yangyalei@xiaomi.com>
apps/crypto/libtomcrypt/libtomcrypt/src/mac/poly1305/poly1305.c:90: multiple definition of `poly1305_init';
nuttx/crypto/poly1305.c:51: first defined here
Signed-off-by: makejian <makejian@xiaomi.com>
The class device only handles descriptor information specific to the class,
and shared descriptor information is passed through parameters and
handled by the composite driver.
Signed-off-by: zhangyuan21 <zhangyuan21@xiaomi.com>
Create bmi160_base.h, bmi160_base.c bmi160_uorb.c files, the bmi160_base file stores
public function interfaces, and the bmi160_uorb file stores functions related to the
uorb framework. Switch the character interface and UORB interface through the
macro CONFIG_SENSORS_BMI160_UORB.
Signed-off-by: likun17 <likun17@xiaomi.com>
This option enables architecture-specific memory copy for dynamic code loading.
For example, Ambiq has MRAM regions for instruction which can't load by
the memcpy directly.
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
Load all sections to LMA not VMA, so the startup code(e.g. start.S) need
relocate .data section to the final address(VMA) and zero .bss section by self.
For example, SiFli and Actions: Background: Device with small sram,
Bootloader run in sram and psram, need boot to Application, with memory overlap
and without XIP. VMA of .data is in "psram" and LMA in "rom", if not enable
`ELF_LOADTO_LMA`, ELF loader will load the section to VMA (will fill bootloader
itself).
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
xres and yres of video overlay buffer may not same as primay framebuffer.
so add it to check the framebuffer count of overlay
Signed-off-by: rongyichang <rongyichang@xiaomi.com>
This commit adds basic support for electrically isolated 8 bit expander.
The expander communicates with the MCU via SPI interface. Both single
and multiple pin read are supported.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit adds support for galvanic isolated ISO1H812G SPI expander.
Both single pin and multiple pin writes are supported.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Move SCU-specific ak09912 sensor into spresense board layer.
Rename a function name to register SCU sensor driver
from ak09912_register to ak09912_scu_register.
Channel polarity can now be set with PWMIOC_SETCHARACTERISTICS ioctl
command as field cpol was added to pwm_info_s structure. This way the
polarity can be easily set from application layer for each channel
apart and also can be change on at runtime if required (although this is
not likely).
Helper defines were also added to simplify the definition of low and high
polarity level. Architecture level should take care of writing the
polarity to correct MCU registers.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Allows the debug behavior to be specified as part of the board, architecture or chip configuration. This is useful when using out-of tree custom board configurations.
Documentation for PWMIOC_SETCHARACTERISTICS ioctl command mentioned
that this command will neither start nor stop the pulsed output. This
however is incorrect as PWMIOC_SETCHARACTERISTICS command leads to
pwm_start() function which starts the pulsed output.
While this might not be the correct behaviour (I would probably welcome
the option to set PWM characteristics without starting the pulsed output)
it is the way the PWM driver is coded for many architectures. Future
enhancement might be to add function pwm_setchar() for example to just
set characteristics without starting the PWM output.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Some driver like virtio-net can offload fragmented IOBs, so an interface
to support this feature is needed.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
- Fix `ip6_map_ipv4addr` and `ip6_get_ipv4addr` macro to work under
different endianness.
- Use `iob_reserve` instead of `iob_trimhead` in `udp_datahandler`.
- Because we may set `sockaddr_in6` into IPv4 header, which causes
`offset` become negative. `iob_reserve` can hold this case while
`iob_trimhead` cannot.
- Select IPv4 domain in send case.
Signed-off-by: Zhe Weng <wengzhe@xiaomi.com>
Implement I_SUID/I_SGID feature for binfs in the POSIX compliant way.
If set-user-ID bit is set in the file permissions, then the effective
user ID of process shall be set to UID of the new process image file.
test case:
hello example emulates to set uid and file set-user-ID bit, and call
geteuid and getegid API.
UID = 2000
GID = 3000
MODE = 06555
nsh> ls -l /bin/hello
-r-sr-sr-x 2000 3000 0 hello
nsh> hello
geteuid:2000
getegid:3000
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
From posix spec, if set-user-ID bit is set in the file permissions,
then the effective user ID of the new process shall be set to the
user ID of the new process image file.
Let's ignore whether ST_NOSUID is set on the mounted file system.
https://pubs.opengroup.org/onlinepubs/007904875/functions/exec.html
test step:
hello example build as a module and call geteuid and getegid API.
then set file binary set-user-ID bit on the host.
$ chmod +s apps/bin/hello
nsh> mount -t hostfs -o fs=. /data
nsh> ls -l /data/apps/bin/hello
-rwsrwsr-x 1000 1000 9264 /data/apps/bin/hello
nsh> /data/apps/bin/hello
geteuid:1000
getegid:1000
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
