 Gregory Nutt
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484f148001
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Sporadic scheduler: Add instrumentation hooks to support GPIO outputs
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2015-07-27 08:37:25 -06:00 |
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Gregory Nutt
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27e21710fd
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This is basically a complete redesign of the sporadic scheduling logic due to limitations in the initial design
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2015-07-25 12:50:53 -06:00 |
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Gregory Nutt
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ed031388ad
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sched/Kconfig: The sporadic scheduler option is no longer EXPERIMENTAL
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2015-07-24 14:19:18 -06:00 |
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Gregory Nutt
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9095e8eab4
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include/, sched/, and libc/: Add support for sporadic scheduling parameters in struct sched_param, posix_spawnattr_t, and pthread_attr_t. Update all user interfaces to pass sporadic scheduling parameters. Feature is dependent on EXPERIMENTAL and no changes have yet been made to core scheduling logic.
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2015-07-23 13:16:32 -06:00 |
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Gregory Nutt
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2b3aae0ddc
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Add basic configuration options for SCHED_SPORADIC
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2015-07-23 10:33:30 -06:00 |
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Gregory Nutt
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342f5fe33d
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Fix references to the no-longer-existent misc/ directory in comments, README files, and documentation
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2015-06-28 08:08:57 -06:00 |
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Gregory Nutt
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1d534ff896
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Convert the 64-bit usec limit to a 32-bit tick limit
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2015-02-03 07:18:17 -06:00 |
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Gregory Nutt
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a448e0f69f
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On my platform I have just 16-bit timer clocked at 32kHz. As result oneshot timer max delay is 2s. The patch adds limit of maximum ticks in sched_timer_start (nuttx/sched/sched/sched_timerexpiration.c). From Macs N.
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2015-02-03 06:25:19 -06:00 |
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Gregory Nutt
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937f9f23f1
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strncpy will not copy the terminating \0 into the destination if the source is larger than the size of the destination. Ensure that the last byte is always zero and let strncpy only copy CONFIG_TASK_NAME_SIZE bytes. The issue of unterminated names can be observed in ps when creating a pthread while CONFIG_TASK_NAME_SIZE is set to 8.
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2014-12-17 12:24:02 -06:00 |
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Gregory Nutt
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fcffafee30
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Remove CONFIG_MAX_TASK_ARGS from all Kconfigs and defconfigs
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2014-11-12 18:02:19 -06:00 |
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Gregory Nutt
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928b0bda3d
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Default for CONFIG_SCHED_HPWORK should be no
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2014-10-14 16:56:37 -06:00 |
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Gregory Nutt
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179fabb019
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Add description of work queues to the porting guide. Update comments
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2014-10-14 10:21:18 -06:00 |
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Gregory Nutt
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e702d9396b
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Fix one missed name change from last big commit
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2014-10-12 07:09:57 -06:00 |
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Gregory Nutt
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b78fe7c270
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Rename CONFIG_SCHED_USRWORK to CONFIG_LIB_USRWORK
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2014-10-11 15:59:40 -06:00 |
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Gregory Nutt
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9292e3d9de
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Decouple the user-space work queue from the kernel space work queues
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2014-10-11 15:50:22 -06:00 |
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Gregory Nutt
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652d3ed29d
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Rename CONFIG_LIBC_AIO to CONFIG_FS_AIO since it is now an OS property
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2014-10-05 15:44:43 -06:00 |
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Gregory Nutt
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31cdcde73a
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Add definitions for SIGPOLL
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2014-10-05 06:02:37 -06:00 |
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Gregory Nutt
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81a4de4a4d
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Kconfig choice value needs a prompt
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2014-09-11 07:18:33 -06:00 |
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Gregory Nutt
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e958040269
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Add capability to perform initial board initialization on a separate worker thread.
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2014-09-03 18:36:43 -06:00 |
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Gregory Nutt
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67a54fd52e
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ARMv7-A: A little more logic and a few more fixes for Cortex-A kernel build
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2014-08-31 07:15:46 -06:00 |
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Gregory Nutt
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34ff07008a
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Add configuration options to start the system from a program on a file system
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2014-08-30 13:27:23 -06:00 |
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Gregory Nutt
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2906ff6a4a
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Cosmetic: Fix all comments, defaults, etc. that references the defunct name user_start
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2014-08-30 11:14:51 -06:00 |
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Gregory Nutt
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952d87587f
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If we run out of pre-allocated watchdog times, the logic will allocate additional timers from the heap. A reserve of pre-allocated watchdog timers is maintained so that there will always be timers available for interrupt handlers.
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2014-08-21 08:44:29 -06:00 |
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Gregory Nutt
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686e5d7e3d
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Tickless: If using an ALARM, then really should report time of expiration
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2014-08-12 10:00:32 -06:00 |
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Gregory Nutt
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66803d0db6
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Define interfaces to use an alarm instead of an interval timer with the tickless option
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2014-08-12 07:28:41 -06:00 |
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Gregory Nutt
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5ee57bda59
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Some final tickless OS bugfixes. No longer EXPERIMENTAL. Update some comments
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2014-08-07 19:11:22 -06:00 |
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Gregory Nutt
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c9661ad5a7
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Change all time conversions. Yech. New timer units in microseconds breaks all existing logic that used milliseconds in the conversions. Something likely got broken doing this, probably because I confused a MSEC2TICK conversion with a TICK2MSEC conversion. Also, the tickless OS no appears fully functional and passes the OS test on the simulator with no errors
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2014-08-07 18:00:38 -06:00 |
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Gregory Nutt
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17ea50b45e
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Fix compler error in tickless code when round robin scheduling is enabled. Other cosmetic fixes to comments
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2014-08-07 14:14:09 -06:00 |
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Gregory Nutt
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0aa7209765
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Change CONFIG_MSEC_PER_TICK to CONFIG_USEC_PER_TICK. This gives more options for system timers in general, but more importantly, let's us realize higher resolution for the case of CONFIG_SCHED_TICKLESS=y -- of course, at the risk of some new interger overvflow problems
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2014-08-07 13:42:47 -06:00 |
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Gregory Nutt
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caba61999a
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Remove CONFIG_DISABLE_CLOCK
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2014-08-07 12:35:24 -06:00 |
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Gregory Nutt
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520a51a3e1
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Implements the tickless OS
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2014-08-07 11:39:16 -06:00 |
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Gregory Nutt
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f0eb4235d1
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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).
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2014-08-06 18:25:42 -06:00 |
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Gregory Nutt
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e3310888e2
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Cosmet updates to some comments
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2014-07-17 17:58:24 -06:00 |
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Gregory Nutt
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4035ed8c6c
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CONFIG_START_YEAR/MONTH/DAY not required if an RTC is used
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2014-05-26 07:45:15 -06:00 |
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Gregory Nutt
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84d28641b7
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SAM4S Xplained Pro: Clean-up of LED usage and also some integration of new timer features. From Bob Doiron
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2014-05-05 14:38:29 -06:00 |
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Gregory Nutt
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8d758a13de
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The CONFIG_SYSTEMTICK_EXTCLK selection should only be available on systems that support it
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2014-04-30 15:32:06 -06:00 |
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Gregory Nutt
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f7485ea962
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Updated system timer logic from Bob Doiron
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2014-04-30 14:46:26 -06:00 |
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Gregory Nutt
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6be62a7ef3
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configs/*/defconfig: Increase the number of pre-allocated watchdogs in configurations that use networking or USB
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2014-04-09 10:57:56 -06:00 |
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Gregory Nutt
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70815e5673
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sched/Kconfig: Add another layer of menuing to simply this level
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2014-03-31 11:32:22 -06:00 |
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Gregory Nutt
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4f59bc5878
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Add CONFIG_CLOCK_MONTONIC
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2014-03-31 10:01:03 -06:00 |
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Gregory Nutt
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7f739b0411
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Support an asynchronous, 'external' clock to get better CPU load measurements
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2014-02-27 14:13:53 -06:00 |
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Gregory Nutt
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59769d44f1
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Add logic to meaure and calculate the CPU load percentage. From David Alessio
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2014-02-22 15:20:12 -06:00 |
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Gregory Nutt
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d092f888fb
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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
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2014-02-20 18:49:45 -06:00 |
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Gregory Nutt
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7a173d58b5
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/proc/uptime logic needs to sample timer in case multiple reads are used to read the time
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2013-12-14 15:25:23 -06:00 |
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Gregory Nutt
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d9f16bba82
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apps/platform: A new now for platform-specific applicatin code
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2013-10-30 09:04:37 -06:00 |
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Gregory Nutt
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f9b9875952
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Various Kconfig files still have references to CONFIG_ variables. Some in harmless comments, some in config definionts which is not harmless. All removed
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2013-04-25 15:52:00 -06:00 |
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Gregory Nutt
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b553609351
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New Kconfig convention: Extra indentation in comments will render as HTML preformatted text
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2013-04-22 09:10:58 -06:00 |
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 patacongo
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6feabf0fee
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Implement user-mode work queues
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5712 42af7a65-404d-4744-a932-0658087f49c3
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2013-03-06 00:02:07 +00:00 |
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patacongo
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d932e56dca
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STM32 F4 patches from Petteri Aimonen (mostly USB)
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5652 42af7a65-404d-4744-a932-0658087f49c3
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2013-02-15 14:37:37 +00:00 |
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patacongo
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b48009644f
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Rename _TCB to struct tcb_s
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5610 42af7a65-404d-4744-a932-0658087f49c3
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2013-02-04 18:46:28 +00:00 |
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