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481 Commits

Author SHA1 Message Date
Gregory Nutt
520a51a3e1 Implements the tickless OS 2014-08-07 11:39:16 -06:00
Gregory Nutt
aaafcfd688 if CONFIG_SCHED_TICKLESS is defined, then the global variable g_system_timer does not exist. 2014-08-06 18:29:05 -06:00
Gregory Nutt
a1ae9d36df Don't build in sched_processtimer.c if CONFIG_SCHED_TICKLESS is selected. 2014-08-06 18:28:51 -06:00
Gregory Nutt
b0324c00ee Uses interval timer interfaces to get the time if CONFIG_SCHED_TICKLESS is selected. 2014-08-06 18:28:08 -06:00
Gregory Nutt
a93fdc165d Use the clock_systimer() macro, do access the g_system_timer() global directly. 2014-08-06 18:27:35 -06:00
Gregory Nutt
0452b1555b if CONFIG_SCHED_TICKLESS is defined, then the global variable g_system_timer does not exist 2014-08-06 18:26:16 -06:00
Gregory Nutt
f0eb4235d1 Add a new option CONFIG_SCHED_TICKLESS to enable the tickless OS. This is a work in progress but should be relatively safe since the new features are only enabled by this option (Safer but not 100% safe since it does not protect from typos and other dumb errors). 2014-08-06 18:25:42 -06:00
Gregory Nutt
19abe47a6f sem_wait: Use set_errno() and get_errno(). Direce access inside the OS may not be supported in the future. 2014-07-31 15:01:37 -06:00
Gregory Nutt
e3310888e2 Cosmet updates to some comments 2014-07-17 17:58:24 -06:00
Gregory Nutt
0da9aaeb09 Fix some recurring typos: postion->position, *atino->*ation 2014-07-08 13:12:36 -06:00
Gregory Nutt
3b81e58047 NET: Fix some errors in recent network I/O buffering when stack runs from interrupt level 2014-06-28 11:35:14 -06:00
Gregory Nutt
0daf30675c Fix conditional compilation for CLOCK_MONTONIC. From Manuel Stühn 2014-06-23 11:01:31 -06:00
Gregory Nutt
90b82696ac Move SAMA5D3 MPDDRC definitions to a separate header file 2014-06-10 08:11:31 -06:00
Gregory Nutt
4035ed8c6c CONFIG_START_YEAR/MONTH/DAY not required if an RTC is used 2014-05-26 07:45:15 -06:00
Gregory Nutt
44a3397283 sig_mqnotempty(): Test for a valid signal number inverted. From eero.nurkkala 2014-05-20 07:38:43 -06:00
Gregory Nutt
84d28641b7 SAM4S Xplained Pro: Clean-up of LED usage and also some integration of new timer features. From Bob Doiron 2014-05-05 14:38:29 -06:00
Gregory Nutt
79d9e9cccd If the CPU load measurements are being driven by an external clock, then the prototype for sched_process_cpuload() must be available in include/nuttx/arch.h 2014-04-30 15:47:55 -06:00
Gregory Nutt
8d758a13de The CONFIG_SYSTEMTICK_EXTCLK selection should only be available on systems that support it 2014-04-30 15:32:06 -06:00
Gregory Nutt
f7485ea962 Updated system timer logic from Bob Doiron 2014-04-30 14:46:26 -06:00
Gregory Nutt
33ddbeab16 STM32: More places where up_prioritize_irq is called when CONFIG_ARCH_IRQPRIO is not defined. Sourceforge ticket #26 2014-04-28 07:07:47 -06:00
Gregory Nutt
1909c44f87 Minor updates to READMEs and comments 2014-04-27 11:38:24 -06:00
Gregory Nutt
ee86b7afb9 ZNeo: update calibration 2014-04-25 12:38:56 -06:00
Gregory Nutt
daf6d347fc Updates to ZNeo configurations + misc cosmetic changes to comments 2014-04-25 11:59:17 -06:00
Gregory Nutt
61555fe5e1 Various SAM4S related fixes, mostely related to the timer driver driver and the SAM4S timer/counter. All from Bob Doisin 2014-04-22 09:01:20 -06:00
Gregory Nutt
a8cb0ad8f4 Add debug assertion on failure to allocate a watchdog 2014-04-21 19:16:12 -06:00
Gregory Nutt
3a1324741a More trailing whilespace removal 2014-04-13 14:32:20 -06:00
Gregory Nutt
494387b33b Make sure that there is one space after for 2014-04-12 13:28:22 -06:00
Gregory Nutt
056aed1274 Make sure that there is one space between while and condition 2014-04-12 13:09:48 -06:00
Gregory Nutt
c208b25f89 Add some checks: if getpid() or get_errno_ptr() are called very early in the initialization sequence, they would fail 2014-04-10 10:20:44 -06:00
Gregory Nutt
6be62a7ef3 configs/*/defconfig: Increase the number of pre-allocated watchdogs in configurations that use networking or USB 2014-04-09 10:57:56 -06:00
Gregory Nutt
cbdc9155ab SAMA5: Add support for DBGU. Xplained board now uses DBGU for the serial console 2014-04-01 11:24:15 -06:00
Gregory Nutt
70815e5673 sched/Kconfig: Add another layer of menuing to simply this level 2014-03-31 11:32:22 -06:00
Gregory Nutt
4f59bc5878 Add CONFIG_CLOCK_MONTONIC 2014-03-31 10:01:03 -06:00
Gregory Nutt
8772a4e104 Add support for CLOCK_MONOTONIC. From Macs N 2014-03-31 09:25:50 -06:00
Gregory Nutt
9f2ee0966a SAM4E-EK NSH: Increase the number of preallocated WDOGS to 32 to avoid timeout failures 2014-03-21 11:22:50 -06:00
Gregory Nutt
805916901a nanosleep(): Was not re-enabling interrupts. Fix from Jason Jiang 2014-03-15 07:33:05 -06:00
Gregory Nutt
7f739b0411 Support an asynchronous, 'external' clock to get better CPU load measurements 2014-02-27 14:13:53 -06:00
Gregory Nutt
cb0d49047a Fix how CPU load counts are adjusted so that the total always adds up to 100% 2014-02-27 11:16:15 -06:00
Gregory Nutt
0610be935d prtdiff_t: Defined in both stddef and sys/types 2014-02-25 12:40:49 -06:00
Gregory Nutt
3b2a3991dd A few fixes for the per-process load average calculation 2014-02-23 12:50:51 -06:00
Gregory Nutt
cf4a362ab5 CPU load calculations now available for all threads. Available in /proc/pid/loadavg 2014-02-23 10:55:01 -06:00
Gregory Nutt
59769d44f1 Add logic to meaure and calculate the CPU load percentage. From David Alessio 2014-02-22 15:20:12 -06:00
Gregory Nutt
d092f888fb Add CONFIG_DEFAULT_SMALL that will select default values for configuration settings based upon either more features or smaller footprint. Turns out not be be useful for modifying existing defconfig files because the defaults do not apply in that case 2014-02-20 18:49:45 -06:00
Gregory Nutt
3be307bc25 sched/task_terminate always return an error because return value was not being set correctory. From Gosha 2014-02-18 11:50:32 -06:00
Gregory Nutt
5bbe3a4992 configs/viewtool-stm32f107/netnsh: Increase the number of pre-allocated watchdog timers. 2014-01-22 17:14:10 -06:00
Gregory Nutt
803cdfdaf1 Changes to get PX4 config to build. Also some warning removal 2014-01-14 13:30:22 -06:00
Gregory Nutt
1da566f27b Make sure that the Z16F build still builds and runs 2014-01-01 10:29:44 -06:00
Gregory Nutt
43e47f8e78 NX server needs to be on a kernel thread for the kernel build 2013-12-30 17:55:19 -06:00
Gregory Nutt
a00e2987c4 Various changes for a clean ZNEO ZDS-II build 2013-12-19 10:01:52 -06:00
Gregory Nutt
7a173d58b5 /proc/uptime logic needs to sample timer in case multiple reads are used to read the time 2013-12-14 15:25:23 -06:00