Aksal/nuttx
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nuttx/drivers
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chao an 87f134cfaa sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 
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>
2025-10-17 14:05:02 +08:00
..
1wire drivers/1wire/1wire_ds2xxx.h: add the driver for DS2XXX eeproms. 2025-10-10 08:55:45 +02:00
aie drivers: unify Private Types banners 2025-05-28 10:17:15 +08:00
analog sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
audio sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
bch drivers/fs: Control the behavior of FTL by passing oflags during the open process. 2025-07-16 14:11:41 +08:00
can sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
clk style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
contactless sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
coresight arch | boards | drivers: fix whitespace issues for switch case statements 2025-05-23 10:48:41 +08:00
crypto sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
devicetree style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
dma drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
dummy drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
eeprom sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
efuse drivers: unify Private Types banners 2025-05-28 10:17:15 +08:00
i2c fs/drivers: Avoid causing a busy loop in the program due to context switching induced by sem_post. 2025-03-17 10:44:26 +01:00
i2s drivers/i2s/i2schar: Implement blocking read/write operations 2025-08-27 11:07:05 +08:00
i3c style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
input sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
ioexpander drivers/ioexpander/aw9523b: New driver for AW9523B i/o expander 2025-08-29 09:10:50 -03:00
ipcc style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
lcd sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
leds sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
loop drivers/iovec: revert vector io implement from loop/null/zero driver 2025-01-22 11:29:39 +08:00
math drivers: unify Private Types banners 2025-05-28 10:17:15 +08:00
misc sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
mmcsd sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
modem sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
motor sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
mtd sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
net sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
note note/notestream: Call lib_fileoutstream_open in notefile_register 2025-06-17 20:58:13 +08:00
pci pci: epf test default a function 2025-08-16 19:49:08 +08:00
pinctrl drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
pipes fs/drivers: Avoid causing a busy loop in the program due to context switching induced by sem_post. 2025-03-17 10:44:26 +01:00
power sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
rc style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
regmap style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
reset style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
rf drivers/rf: migrate license to ASF 2024-11-06 19:46:13 +08:00
rmt drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
rpmsg sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
rptun style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
segger drivers/segger: Add a kconfig to override Segger SystemView target sources version 2025-07-22 23:21:31 +08:00
sensors sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
serial sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
spi sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
syslog drivers/syslog: let syslog_write() return the maximum bytes writen 2025-09-14 11:08:35 -04:00
thermal style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
timers sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
usbdev sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
usbhost sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
usbmisc sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
usbmonitor sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
usrsock drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
vhost style: fix spelling in code comments and strings 2025-05-23 10:48:41 +08:00
video sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
virtio kasan: kasan_reset_tag rename kasan_clear_tag 2025-06-30 18:19:38 +08:00
wireless sched/sleep: replace all Signal-based sleep implement to Scheduled sleep 2025-10-17 14:05:02 +08:00
.gitignore
CMakeLists.txt drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00
drivers_initialize.c usbhost: add common usb host waiter and drivers initialization 2025-05-15 21:58:57 +08:00
Kconfig AI engine driver 2024-10-16 13:57:23 +08:00
Makefile drivers: migrate to SPDX identifier 2024-11-06 18:02:25 +08:00