Add documentation describing the purpose and behavior of early_syslog(),
which provides a minimal logging facility available during early system
initialization or system down.
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
This is the case for USB2517 USB HUB. Also improved the driver to
avoid mistakes: initially I changed g_id[3], but the in register
there is another field where we need to pass this size again. So
it is better to use ARRAY_SIZE() macro to avoid mistakes.
Signed-off-by: Alan C. Assis <acassis@gmail.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>
This protects the driver in case multiple threads are trying to initialize
or uninitialize the cdcacm concurrently.
Note that this only protects the case when the private pointer is not managed
outside the kernel. If someone has acquired the pointer to the driver and uses
that, it also needs to manage the protection itself if needed.
Signed-off-by: Jukka Laitinen <jukka.laitinen@tii.ae>
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>
Refactor kvaser_pci.c to use netdev_upperhalf for SocketCAN interface.
The reason for this change is to simplify the driver code and get rid of
duplicate code that may be shared between other network devices.
Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
Many different architectures re-implemented the exact same code for
`up_*delay` because it was originally written as architecture dependent
code. Busy-waiting can be done regardless of architecture, so this
commit moves that duplicated implementation to a common file with weak
definitions so that individual architectures (see tc32) are still able
to override the definition if needed/desired.
Default implementation is not included if ARCH_TIMER is enabled, since
it is more accurate and provides its own weak definitions to override.
Signed-off-by: Matteo Golin <matteo.golin@gmail.com>
The custom implementation of obtaining a timestamp for this driver
returned an unsigned long, which limited the amount of time the driver
could run before roll-over quite significantly (since timestamps are in
microseconds). This change standardizes the driver to use the sensor
driver implementation for timestamps.
Signed-off-by: Matteo Golin <matteo.golin@gmail.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>
In current implementation, when doing syslog_write(), there may
be more than one channel, the syslog will iterate each channel,
but only return the bytes writen through the last channel, the
better way should be returning the maximum bytes writen
through one channel.
Signed-off-by: Chengdong Wang <wangchengdong@lixiang.com>
This patch will report events in the following scenarios:
1. Events that have changed but not been waited for before being added to
the interest list.
2. Events that occur after `epoll_wait()` returns and before it is called
again.
Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.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>
This commit implements simple (blocking) read and write operations
for the i2schar driver. Although it already contained such methods,
the read/write operation was not being properly handled by the
`i2schar_[rx|tx]callback` (called when the operation has finished).
A semaphore is used to ensure that read data was received by the
receiver and another semaphore ensures that data was written by the
transmitter.
Please note that the already-existing mutex for the I2S peripheral
was replaced by two mutexes, one for the receiver and other for the
transmitter to allow full-duplex communication.
Signed-off-by: Tiago Medicci Serrano <tiago.medicci@espressif.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>
Instead of verifying MMD indirect access by checking
EEE ADVERTISEMENT register has value 0x6 (which may be changed),
the verification is done by write and check LED MODE register.
1. Backup current LED_MODE register value
2. Write value Single-LED mode (0x10) to LED_MODE
3. Read LED_MODE register and verify it returns value 0x10
4. Write original (backup) value to LED_MODE
From the ksz9477 errata, setup the configuration which is tested to work.
- Improve PHY receive performance
- Disable EEE for ports 1-5
- Fix supply current values
Signed-off-by: Jani Paalijarvi <jani.paalijarvi@unikie.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>
- Fix gpioinfo argument type
- Fix unused variable "ret" warning when CONFIG_TCA64XX_INT_POLL is not defined
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>
Configure number of passes in interrupt handler logic to avoid losing RX frames
in QEMU environment.
Signed-off-by: p-szafonimateusz <p-szafonimateusz@xiaomi.com>
Add support for the Texas Instruments TMP112 I2C/SMBus digital
temperature sensor. Also add a new defconfig that includes
support for a TMP112 sensor and extend the existing documentation
to include its description.
Signed-off-by: Niccolò Maggioni <nicco.maggioni+nuttx@gmail.com>
