NuttX has no real session/process-group abstraction, so the TTY layer
collapses the foreground process group onto the single dev->pid field
(pgrp == pid, one member per group). Extend the controlling-terminal
support so portable software (e.g. dropbear, socat) that relies on
job-control primitives works without losing the existing NuttX-specific
behaviour.
Driver (serial.c, pty.c):
- TIOCSCTTY now accepts a flag: arg > 0 keeps the historical "target
PID in arg" semantics (NSH registers the foreground command it just
spawned), while arg == 0 selects the calling task via
nxsched_getpid(), matching the POSIX flag convention used by
dropbear/socat/apue. This preserves all existing callers and makes
the previously-dead arg==0 path deliver SIGINT correctly.
- Add TIOCGPGRP/TIOCGSID (return dev->pid) and TIOCSPGRP (set it).
- pty.c gains the same handlers against pd_pid and includes
nuttx/sched.h for nxsched_getpid().
ioctl numbers (tioctl.h): TIOCGPGRP/TIOCSPGRP/TIOCGSID at 0x37-0x39.
libc wrappers:
- termios: tcgetpgrp(), tcsetpgrp(), tcgetsid() over the new ioctls.
- unistd: setsid()/getsid()/setpgid() stubs consistent with the
existing getpgrp()/getpgid() single-session model (sid == pgid ==
pid; setpgid only succeeds for pgid == pid).
Declare the new prototypes in unistd.h (tcgetsid was already in
termios.h) and register all sources in the Make.defs/CMakeLists.
Group-broadcast signalling (kill(-pgrp)) remains unsupported, so
tty signals still target the single dev->pid; a real session/process
group model is left as a follow-up.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Move the stm32l1 sources, headers and boards into arch/arm/src/stm32l1,
arch/arm/include/stm32l1 and boards/arm/stm32l1, then finalize the split:
source each split family directly in arch/arm/Kconfig and boards/Kconfig and
remove the now-empty combined arch/arm/src/stm32 and boards/arm/stm32 trees.
BREAKING CHANGE: The legacy STM32 architecture and board paths were split into
stm32f1, stm32l1, stm32f2, stm32f3, stm32f4, and stm32g4 directories.
Out-of-tree boards must move from stm32 to the matching split family.
Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: Move the existing STM32 board common sources to
boards/arm/common/stm32 and fold in the common STM32F0/L0/G0/C0
board helpers so split STM32 board families can share one source
tree.
Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: STM32H7 Kconfig symbols were renamed from CONFIG_STM32H7_* to CONFIG_STM32_*.
Out-of-tree code must update defconfigs and Kconfig references to the new CONFIG_STM32_* names.
The custom clock option is a special breaking case that does not follow the family-to-common pattern:
CONFIG_STM32H7_CUSTOM_CLOCKCONFIG was renamed to CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG.
Signed-off-by: raiden00pl <raiden00@railab.me>
BREAKING CHANGE: separate pulse count feature from PWM driver.
Coupling PWM driver with pulse count feature was bad decision from the beginning,
these are two different things:
- PWM is a modulation scheme: it continuously represents a value by varying duty
cycle, usually at a fixed frequency.
- Pulse train generation is a finite waveform transaction: generate N edges/pulses
with selected timing, then complete.
This change introduce a new pulse count driver with new API.
Now user can generate pulse train by providing:
- high pulse length in ns
- low pulse length in ns
- pulse count
All architectures supporting pulse count have been adapted in subsequent commits.
Users must migrate their code to use the new driver with new API.
Signed-off-by: raiden00pl <raiden00@railab.me>
Commit 4df80e19 removed CONFIG_PWM_MULTICHAN option and changed
the API. Update the documentation to reflect this change.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit explain that the QE encoder driver can be used to
internal QE from microcontroller or external magnetic encoder.
Also explains how to use the mt6816 board profile to STM32F4Discovery
Signed-off-by: Alan C. Assis <acassis@gmail.com>
BREAKING: In an effort to simplify NuttX initialization, NSH_ARCHINIT is
removed. board_app_initialize is also removed. BOARD_LATE_INITIALIZE now
performs all board initialization logic, and is by default enabled. All
references to these symbols are removed. BOARDIOC_INIT remains, but will
result in -ENOTTY when called. It is to be removed in a later commit.
Quick fix: Boards relying on NSH_ARCHINIT should now enable
CONFIG_BOARD_LATE_INITIALIZE instead. If the application needs
fine-grained control over board initialization from userspace, the logic
performed by BOARDIOC_INIT may be copied to the board_finalinitialize
function and used instead via BOARDIOC_FINALINIT. All
board_app_initialize logic provided by NuttX is now moved to
board_late_initialize, and the same should be done for out-of-tree
boards.
Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
This commit adds the Documentation to MPR121 Keypad and the board
profile documentation to STM32F4Discovery board.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
Add documentation for the RC/LIRC character driver subsystem covering
device registration, the LIRC interface, and usage from user space.
Remove placeholder empty files under drivers/rmt that were left over
from the rmtchar era and are no longer referenced.
Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
Add a new section documenting the TIOCSERGSTRUCT debug ioctl and CONFIG_SERIAL_TIOCSERGSTRUCT Kconfig option. The section covers enabling the feature, how the ioctl copies driver-internal state to user space, example usage with the 16550 UART driver, and a warning about the non-stable nature of exposed structures.
Signed-off-by: Arjav Patel <arjav1528@gmail.com>
Add a generic kmatrix lower-half with polling/debounce, STM32 board adapters, Kconfig options, a public API header, and a test example/documentation.
Signed-off-by: Felipe Moura <moura.fmo@gmail.com>
decouple kbd / keypad.
Fix some comments
add documentation
fix rule issues
Update CMakeLists.txt
update documentation.
improve documentation
Add documentation for CONFIG_TIMER_WDOG, a software-based timer
implementation using the NuttX wdog subsystem.
Signed-off-by: yangsong8 <yangsong8@xiaomi.com>
This commit fixes a typo in the capture.h header file. This is a
breaking change, but the fix is trivial (replace macro with new one).
Signed-off-by: Côme VINCENT <44554692+comejv@users.noreply.github.com>
Add basic timer operations to the kernel, including registration,
start/stop, and callback handling. This provides a consistent timer
interface for use by kernel components and drivers.
Signed-off-by: zhaohaiyang1 <zhaohaiyang1@xiaomi.com>
Introduce a single configuration option to provide strict transmit
priority ordering based on CAN ID.
The intention is to expose the user-visible behavior (strict TX
priority ordering) rather than the underlying implementation details.
Strict priority ordering is only meaningful when hardware transmit
buffer cancellation is available, so splitting this functionality into
separate configuration options was misleading and could result in
partially effective or incorrect configurations.
Signed-off-by: zhaohaiyang1 <zhaohaiyang1@xiaomi.com>
These documentation updates correspond to commits:
- drivers/capture: add signal notification support for edge capture events
- drivers/capture: add fake capture driver for testing and development
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
This moves mtd.rst from special/ directory to its own special/mtd
subdirectory and adds pages for supported devices (NOR/NAND flashes and
EEPROMS) with some basic configuration and initialization description.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
Add handling for GPIOC_SETDEBOUNCE to set GPIO pin debounce duration.
Add handling for GPIOC_SETMASK to enable/disable GPIO interrupt mask.
Signed-off-by: chenzihan1 <chenzihan1@xiaomi.com>
Add support for the page erase (PE), sector erase (SE) and chip erase
(CE) dedicated commands on supported devices.
They can be triggered using the corresponding IOCTL commands
EEPIOC_PAGEERASE, EEPIOC_SECTORERASE and
EEPIOC_CHIPERASE.
On unsupported devices, this is equivalent to writing a full page,
sector, or the entire EEPROM to 0xFF.
Signed-off-by: Antoine Juckler <6445757+ajuckler@users.noreply.github.com>
Add EEPIOC_SETSPEED ioctl acting like the MTDIOC_SETSPEED ioctl. The
default frequency is settable in the Kconfig.
Add xx25xx SPI delay control configurations.
Signed-off-by: Antoine Juckler <6445757+ajuckler@users.noreply.github.com>
This adds ability for read and write operations to work with messages
aligned to configured number of bytes. This has few different use
cases.
The alignment is specified as unsigned integer and can be changed with
ioctl command CANIOC_SET_MSGALIGN. The current value can be queried by
CANIOC_GET_MSGALIGN command.
The default value for the message alignment is 1. This will provide
behavior consistent with current one. Thus messages are placed to the
buffer right after data of the previous one. The same applies for
writes.
The special alignment value 0 disables read and write of multiple frames. Thus
read will always return at most one message and write will always write
only one message even if larger buffer size is provided.
Another use case is if message alignment is set to exactly message
representation size (`sizeof(struct can_msg_s)`). This allows writing
and reading arrays of messages.
Other values provide even more advanced and specialized use cases, such
as optimizations if architecture has to emulate some non-aligned
accesses, there alignment of for example 4 bytes could provide
performance boost.
The original motivation behind this is was compatibility with socket
CAN. It is easier to port applications to NuttX's CAN driver if only one
frame is provided at the time. This solution was suggested by Pavel Pisa
<pisa@fel.cvut.cz> as a more versatile variant of plain boolean
disabling the multiple frame retrieval.
Signed-off-by: Karel Kočí <kkoci@elektroline.cz>
Add documentation for changes made in #16809.
Add an example defconfig for a nsh build with the capture example.
Replace the STM32H7_CAP option with just CAPTURE as the guard for the
lower half driver.
Signed-off-by: Côme VINCENT <44554692+comejv@users.noreply.github.com>
This commit creates a sbutton device that uses a single button to
create a keyboard driver that returns TAB or ENTER depending how
long the user keeps the button pressed.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
Updates the ADS1115 documentation with information about the two new
commands for triggering conversion and reading the result.
Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
This commit adds the missing documentation for the ioctl command ANIOC_ADS1115_READ_CHANNEL.
Signed-off-by: Tony Lin <99093620+justapotato213@users.noreply.github.com>
The MCP47X6 series consists of the following single channel DAC chips:
- MCP4706 (8 bit)
- MCP4716 (10 bit)
- MCP4726 (12 bit)
The driver supports the following configurations:
- gain
- power down
- voltage reference
Persistent configuration storage in the internal EEPROM is not
implemented.
This commit adds the documentation for the Texas Instruments ADS1115 Driver.
Signed-off-by: Tony Lin <99093620+justapotato213@users.noreply.github.com>
Adds initial documentation to the IOCTL commands of wireless character devices.
Signed-off-by: Kevin Witteveen (MartiniMarter) <kevinwit1999@gmail.com>
Added detailed information about the SX126x and its current state in development.
Added directories for wireless character driver and LPWAN.
Added indexes to each directory and its contents within.
Signed-off-by: Kevin Witteveen (MartiniMarter) <kevinwit1999@gmail.com>
This ioctl clears the active fault inputs. Some faults can be latched
(still active even if the source is not active anymore), so they have
to be cleared from the software. The argument is a pointer to unsigned
long bitmask variable. This bitmask specifies which faults are to be
cleared.
The ioctl also can fetch the faults active prior to the clear. These
faults are saved to the argument specifying which faults are to be
cleared. Therefore passing zero bitmask means the driver will only return
active faults and clear none. Passing NULL pointer means the driver
will clear all active and return none.
The implementation of this ioctl is per driver.
Signed-off-by: Michal Lenc <michallenc@seznam.cz>
This commit add support to the serial_icounter_s struct used with
TIOCGICOUNT to report U[S]ART errors such as frame, parity, overrun,
etc.
Signed-off-by: Alan C. Assis <acassis@gmail.com>
