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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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| .. | ||
| alt1250.c | ||
| alt1250.h | ||
| altcom_cmd.h | ||
| altcom_cmd_log.h | ||
| altcom_cmd_sms.h | ||
| altcom_cmd_sock.h | ||
| altcom_errno.c | ||
| altcom_errno.h | ||
| altcom_hdlr.c | ||
| altcom_hdlr.h | ||
| altcom_hdlr_firmware.c | ||
| altcom_hdlr_firmware.h | ||
| altcom_hdlr_log.c | ||
| altcom_hdlr_log.h | ||
| altcom_hdlr_net.c | ||
| altcom_hdlr_net.h | ||
| altcom_hdlr_other.c | ||
| altcom_hdlr_other.h | ||
| altcom_hdlr_pdn.c | ||
| altcom_hdlr_pdn.h | ||
| altcom_hdlr_pin.c | ||
| altcom_hdlr_pin.h | ||
| altcom_hdlr_psave.c | ||
| altcom_hdlr_psave.h | ||
| altcom_hdlr_radio.c | ||
| altcom_hdlr_radio.h | ||
| altcom_hdlr_sim.c | ||
| altcom_hdlr_sim.h | ||
| altcom_hdlr_sms.c | ||
| altcom_hdlr_sms.h | ||
| altcom_hdlr_socket.c | ||
| altcom_hdlr_socket.h | ||
| altcom_lwm2m_hdlr.c | ||
| altcom_lwm2m_hdlr.h | ||
| altcom_pkt.c | ||
| altcom_pkt.h | ||
| altmdm.c | ||
| altmdm.h | ||
| altmdm_event.c | ||
| altmdm_event.h | ||
| altmdm_spi.c | ||
| altmdm_spi.h | ||
| altmdm_timer.c | ||
| altmdm_timer.h | ||
| CMakeLists.txt | ||
| Kconfig | ||
| Make.defs | ||