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87f134cfaa
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> |
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| .. | ||
| oa_tc6 | ||
| CMakeLists.txt | ||
| dm90x0.c | ||
| e1000.c | ||
| e1000.h | ||
| enc28j60.c | ||
| enc28j60.h | ||
| encx24j600.c | ||
| encx24j600.h | ||
| ftmac100.c | ||
| igb.c | ||
| igb.h | ||
| igc.c | ||
| igc.h | ||
| Kconfig | ||
| ksz9477.c | ||
| ksz9477_i2c.c | ||
| ksz9477_reg.h | ||
| lan91c111.c | ||
| lan91c111.h | ||
| lan9250.c | ||
| lan9250.h | ||
| loopback.c | ||
| Make.defs | ||
| mdio.c | ||
| netdev_upperhalf.c | ||
| phy_notify.c | ||
| rpmsgdrv.c | ||
| skeleton.c | ||
| slip.c | ||
| telnet.c | ||
| tun.c | ||
| w5500.c | ||
| wifi_sim.c | ||