Commit Graph

127 Commits

Author SHA1 Message Date
Andrew Tridgell c7dabad02c HAL_Linux: added uartF 2016-04-20 09:39:49 +10:00
Lucas De Marchi 0ad436c337 AP_HAL_Linux: Scheduler: bring back scheduler table
Use a scheduler table to list threads' properties in a single place.
2016-02-12 23:42:34 -02:00
Lucas De Marchi a1b62b4984 AP_HAL_Linux: Scheduler: use PeriodicThread
Some tasks were not accounting for the time to execute the tasks. Now
that we are using the infra from PeriodicThread all of them are.
2016-02-12 23:42:34 -02:00
Lucas De Marchi 860d5aaf84 AP_HAL_Linux: Scheduler: move rpcmem initialization to setup phase
This was the only piece remaining in the timer thread that was used only
to setup the thread.
2016-02-12 23:42:34 -02:00
Lucas De Marchi e3beef0f77 AP_HAL_Linux: Scheduler: remove unused parameter 2016-02-12 23:42:34 -02:00
Lucas De Marchi 2b61eaf9f2 Global: remove {begin,end}_atomic from scheduler
These are never used and largely not implemented.
2016-02-12 23:42:34 -02:00
Lucas De Marchi 9aa49cda93 Global: remove system_initializing() from scheduler
This is not used anymore.
2016-02-12 23:42:34 -02:00
Lucas De Marchi 9cf9fc152b AP_HAL_Linux: use pthread's barrier instead of polling
Use pthread's barrier so we don't keep waking up threads with possibly
higher priority during initialization phase.

This also synchronizes all of them to a single point. With the previous
approach it was possible (but unlikely) that a thread hadn't reach the
synchronization point when main thread signalize "system initialized".
2016-02-12 23:42:34 -02:00
Lucas De Marchi 2b0e214168 AP_HAL_Linux: Scheduler: move synchronization to common method 2016-02-12 23:42:34 -02:00
Lucas De Marchi a183ff8d32 AP_HAL_Linux: Scheduler: use Thread abstraction 2016-02-12 23:42:34 -02:00
Lucas De Marchi 5e9b45ebc2 AP_HAL_Linux: Scheduler: make microsleep() public
This will be used outside of scheduler class.
2016-02-12 23:42:34 -02:00
Lucas De Marchi 27999b339d AP_HAL_Linux: Scheduler: include cleanups
While at it also remove some wrong whitespaces.
2016-02-08 13:28:31 -02:00
Julien BERAUD 4acc121bd6 AP_HAL_Linux: support for timesliced timers
In order for lower frequency timers not to be called at the same iteration
of the main timer loop. This improves scheduling.
2016-01-18 16:57:48 -02:00
Víctor Mayoral Vilches a0b9181198 HAL_Linux: Scheduler add PXFmini support 2016-01-05 15:35:55 -02:00
Andrew Tridgell dc8a3bbf92 HAL_Linux: added qflight board subtype 2015-12-27 16:12:27 +11:00
Aaron Wang Shi 4d7db9bba3 AP_HAL_Linux: add ifdefs for BH hat like other RPI-based boards 2015-12-21 15:54:31 +11:00
Lucas De Marchi 2439826c19 AP_HAL_Linux: use init() method without arguments
Override the init() method from parent class that doesn't have a
parameter since it's not used here.
2015-12-02 14:49:11 -02:00
Caio Marcelo de Oliveira Filho e0a6d83457 AP_HAL_LINUX: remove unused functions 2015-11-20 12:36:25 +09:00
Caio Marcelo de Oliveira Filho ff016c4b5a AP_HAL_Linux: implement new AP_HAL functions
Implement the new AP_HAL functions and use them in the Scheduler when
possible.

The '_sketch_start_time' was renamed and moved as a detail of
implementation of the functions code. It allows the code to return time
starting from zero.

The 'stopped_clock_usec' was renamed to follow convention in the file
and add a getter so that AP_HAL functions can reach it. It's not a
problem this getter is public because in practice, regular code
shouldn't even access the Linux::Scheduler directly -- only code that
should is from Linux implementation.
2015-11-20 12:25:39 +09:00
Víctor Mayoral Vilches 30153b6eac AP_HAL_Linux: Scheduler, add Erle-Brain 2 2015-11-04 13:58:24 +11:00
Lucas De Marchi 1b07dabeb7 Replace prog_char and prog_char_t with char
prog_char and prog_char_t are now the same as char on supported
platforms. So, just change all places that use them and prefer char
instead.

AVR-specific places were not changed.
2015-10-30 14:35:30 +09:00
Lucas De Marchi 2c38e31c93 Remove use of PSTR
The PSTR is already define as a NOP for all supported platforms. It's
only needed for AVR so here we remove all the uses throughout the
codebase.

This was automated with a simple python script so it also converts
places which spans to multiple lines, removing the matching parentheses.

AVR-specific places were not changed.
2015-10-30 14:35:04 +09:00
Lucas De Marchi 2af4244854 AP_HAL_Linux: Scheduler: implement variadic version of panic() 2015-10-24 14:26:36 +11:00
Lucas De Marchi ad61a93c14 AP_HAL: turn panic() into a variadic method
Change the declaration on all HAL implementations so panic() in future
may implement a printf-like interface.
2015-10-24 14:26:35 +11:00
Lucas De Marchi 2ac96b942c AP_HAL_Linux: remove prefix from AP_HAL_Linux classes
We have already a Linux namespace, so there's no need to prefix Linux on
all names.
2015-10-21 10:11:19 +11:00
Lucas De Marchi 54c2c5f682 AP_HAL_Linux: use method for downcast
Instead of just doing a static cast to the desired class, use a method
named "from". Pros:

  - When we have data shared on the parent class, the code is cleaner in
    child class when it needs to access this data. Almost all the data
    we use in AP_HAL benefits from this

  - There's a minimal type checking because now we are using a method
    that can only receive the type of the parent class
2015-09-23 09:01:29 +10:00
raspilot 30a2fe0857 AP_HAL_Linux: added scheduler hooks for raspilot 2015-09-14 14:22:16 +10:00
Gustavo Jose de Sousa 124b750c10 AP_HAL_Linux: standardize inclusion of libaries headers
This commit changes the way libraries headers are included in source files:

 - If the header is in the same directory the source belongs to, so the
 notation '#include ""' is used with the path relative to the directory
 containing the source.

 - If the header is outside the directory containing the source, then we use
 the notation '#include <>' with the path relative to libraries folder.

Some of the advantages of such approach:

 - Only one search path for libraries headers.

 - OSs like Windows may have a better lookup time.
2015-08-11 16:28:43 +10:00
Staroselskii Georgii f4d14f73ba AP_HAL_Linux: extended panic handling with RCInput deinitialization
The issue has already come up. There's no deinitialization mechanisms at the moment. As APM is rather software than firmware on Linux, there're some clean-up work that needs to be done. This commit triggers deinitialization of RCInput on a panic.
2015-07-23 08:51:37 +10:00
Vladislav Zakharov e505eb2cd8 AP_HAL_Linux: Changes in Scheduler: Added defines for delays, RCIN_RERIOD changed 2015-06-29 16:45:42 +10:00
Andrew Tridgell 7e264b44df HAL_Linux: fixed functor comparison 2015-05-26 15:14:50 +10:00
Andrew Tridgell 0619247992 HAL_Linux: don't advance time in delay() and delay_microseconds()
this could cause time to go backwards in Replay. Thanks to Peter for
finding this
2015-05-19 13:17:15 +10:00
Andrew Tridgell 179e47c618 HAL_Linux: prevent time from going backwards in Replay 2015-04-20 15:12:51 +10:00
Staroselskii Georgii dff430e136 AP_HAL_Linux: added UART port for second GPS 2015-04-14 15:59:34 +10:00
Andrew Tridgell 7f7d92913e HAL_Linux: allow running as non-root
this is needed for Replay, plus is very useful for debugging
2015-04-14 09:25:35 +10:00
Lucas De Marchi f049c8e4c5 AP_HAL_Linux: remove needless call to mlockall()
All threads share the same address space and have the same pages locked
into memory so it's not necessary to call mlockall() for each of them.

Grepping /proc/<tid>/status gives the same VmLck for all of them, even
when only the main thread locks the memory:

    # for i in `seq 477 482`; do \
	name=$(cat /proc/$i/comm); \
	vm=$(cat /proc/$i/status |grep VmLck); \
        echo -e "$name\t$vm"; \
    done
    ArduCopter.elf  VmLck:     57868 kB
    sched-timer     VmLck:     57868 kB
    sched-uart      VmLck:     57868 kB
    sched-rcin      VmLck:     57868 kB
    sched-tonealarm VmLck:     57868 kB
    sched-io        VmLck:     57868 kB
2015-04-14 09:17:21 +10:00
Lucas De Marchi b7355dc62b AP_HAL_Linux: set thread name for ease debug
Use pthread_setname_np() to set thread name so it's easier to debug
what't going on with each of them. This is the example output of the
relevant par of "ps -Leo class,rtprio,wchan,comm":

FF      12 futex_ ArduCopter.elf
FF      15 usleep sched-timer
FF      14 hrtime sched-uart
FF      13 poll_s sched-rcin
FF      11 hrtime sched-tonealarm
FF      10 hrtime sched-io
2015-04-14 09:17:21 +10:00
Lucas De Marchi 2c48434110 AP_HAL_Linux: use a table to initialize threads
Refactor function calls into a table and pass in the name so it can be
used in error message.
2015-04-14 09:17:21 +10:00
Lucas De Marchi e3d78b8960 AP_HAL_Linux: fix passing callback to member function
It's undefined behavior to pass the callback to pthread to a class
member like we were doing. Refactor the code so the callbacks are static
members.

This fixes the following warnings:

libraries/AP_HAL_Linux/Scheduler.cpp: In member function 'virtual void Linux::LinuxScheduler::init(void*)':
/home/lucas/p/dronecode/ardupilot/libraries/AP_HAL_Linux/Scheduler.cpp:61:76: warning: converting from 'void* (Linux::LinuxScheduler::*)()' to 'Linux::LinuxScheduler::pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
                            (pthread_startroutine_t)&Linux::LinuxScheduler::_timer_thread);
                                                                            ^
libraries/AP_HAL_Linux/Scheduler.cpp:65:76: warning: converting from 'void* (Linux::LinuxScheduler::*)()' to 'Linux::LinuxScheduler::pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
                            (pthread_startroutine_t)&Linux::LinuxScheduler::_uart_thread);
                                                                            ^
libraries/AP_HAL_Linux/Scheduler.cpp:69:76: warning: converting from 'void* (Linux::LinuxScheduler::*)()' to 'Linux::LinuxScheduler::pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
                            (pthread_startroutine_t)&Linux::LinuxScheduler::_rcin_thread);
                                                                            ^
libraries/AP_HAL_Linux/Scheduler.cpp:73:76: warning: converting from 'void* (Linux::LinuxScheduler::*)()' to 'Linux::LinuxScheduler::pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
                            (pthread_startroutine_t)&Linux::LinuxScheduler::_tonealarm_thread);
                                                                            ^
libraries/AP_HAL_Linux/Scheduler.cpp:77:76: warning: converting from 'void* (Linux::LinuxScheduler::*)()' to 'Linux::LinuxScheduler::pthread_startroutine_t {aka void* (*)(void*)}' [-Wpmf-conversions]
                            (pthread_startroutine_t)&Linux::LinuxScheduler::_io_thread);
2015-04-14 09:17:20 +10:00
Lucas De Marchi 62c2f737d5 AP_HAL_Linux: fix setting RT priorities
LinuxScheduler::init() was not really working as it should. This was the
result of "ps -Leo class,rtprio,wchan,comm | grep ArduCopter":

FF      12 futex_ ArduCopter.elf
FF      12 usleep ArduCopter.elf
FF      12 hrtime ArduCopter.elf
FF      12 poll_s ArduCopter.elf
FF      12 hrtime ArduCopter.elf
FF      12 hrtime ArduCopter.elf

As can be seen all the threads run with the same priority, the one of the main
thread. There were basically 2 mistakes:

	1) pthread_attr_setschedpolicy() needs to be called before
	   pthread_attr_setschedparam(). Otherwise the latter will just return
	   an error and not set the priority

	2) pthread_create() defaults to ignore the priority and inherit the
	   it from the parent thread. pthread_attr_setinheritsched() needs to
	   be called to change the behavior to PTHREAD_EXPLICIT_SCHED. See
	   pthread_attr_setinheritsched(3) for an example program to test the
	   behaviors.

Also, it's undefined behavior to call pthread_attr_init() several times on the
same pthread_attr_t. Although we could reutilize the same attribute without
calling  pthread_attr_init() again, lets refactor the code a little bit, so all
the pthread calls are in a single place. Then also call pthread_attr_destroy()
when we are done.
2015-04-14 09:17:20 +10:00
Lucas De Marchi 29b667efdf AP_HAL_Linux: remove useless mlock of stack
In Linux the default stack size is always greater than 32k, either 2MB
or 8MB depending on the architecture. There's no point in creating a
function to lock 32k.
2015-04-14 09:17:20 +10:00
Staroselskii Georgii 64da7f0360 AP_HAL_Linux: fix macro that defines number of I/O callbacks 2015-02-12 12:52:56 +11:00
Staroselskii Georgii e4a21f291d AP_HAL_Linux: added LinuxSPIUARTDriver that can handle SPI-driven Ublox 2015-01-07 08:41:12 +11:00
Andrew Tridgell 193bda068c HAL_Linux: run IO processes when we do a stop_clock()
this has the effect of allowing logging to progress in Replay where we
are running at much more than realtime speeds
2014-12-08 11:24:39 +11:00
Andrew Tridgell 7497b4dfb1 HAL_Linux: fixed Replay with new AP_InertialSensor library 2014-11-16 12:30:50 +11:00
bugobliterator 329c1f5190 HAL_Linux:create ToneAlarmDriver as a separate class
ToneAlarm is now declared as a separate class instance of which is added as a private member of LinuxUtil
Some minor fixes in this patch include changing return type of tonealarm_init() to bool and use dprintf
2014-11-15 16:59:06 +11:00
bugobliterator f058131140 HAL_Linux Scheduler: reduce the delay inside tonealarm thread
Since the tonealarm is now passthrough the delay inside the thread needs to be reduced for precise tune generation
2014-11-15 16:59:06 +11:00
Víctor Mayoral Vilches ce4c4c43dc AP_HAL_Linux: Scheduler reboot fix
exit from the autpilot when reboot is commanded.
The software assumes that the code is being
launched in an infinite loop thereby an exit
will make it reboot.
2014-11-14 10:27:19 +11:00
bugobliterator 298b27444a HAL_Linux: Add ToneAlarm Driver to Linux_HAL
ToneAlarm is setup for Beaglebone Black using pwm, toneAlarm thread runs on second last priority.
2014-11-10 06:27:48 +11:00
Andrew Tridgell 024d3b71e7 HAL_Linux: use a semaphore in suspend_timer_procs()
this is the start of multi-core aware code
2014-08-22 21:13:11 +10:00
Andrew Tridgell ead82ee581 HAL_Linux: implement millis64() and micros64() 2014-08-20 08:00:21 +10:00
Andrew Tridgell b9dc2335ee HAL_Linux: run timer thread at average 1kHz without drift
this avoids drift in the 1kHz timer, to avoid bias in the IMU
filtering
2014-08-19 20:03:34 +10:00
Andrew Tridgell 8f280d212b HAL_Linux: don't use usleep() in suspend_timer_procs()
usleep can cause a large delay with PREEMPT kernel
2014-08-19 20:03:33 +10:00
bugobliterator ac11d282b5 HAL_Linux: Add support for PPM input to HAL_Linux
rcin thread continuously scans for values inside ring buffer maintained by pru with rcinpru0 firmware.
2014-08-19 10:08:16 +10:00
Silvia 7fd0e8345d HAL_Linux: Duplicate `#include <unistd.h>`deleted 2014-08-19 10:08:16 +10:00
Andrew Tridgell fc8068adfe HAL_Linux: use board subtypes 2014-07-14 09:44:35 +10:00
Víctor Mayoral Vilches c4b6026d53 HAL_Linux: include readRegistersMultiple in I2CDriver
AP_HAL_Linux implemments this new method.
2014-07-14 09:28:42 +10:00
Andrew Tridgell 74ee70d463 HAL_Linux: updates for ERLE board type 2014-07-14 08:52:27 +10:00
Andrew Tridgell 3fa2207a2d AP_HAL: allow for microsecond resolution in scheduler->stop_clock()
this makes 400Hz in the replay code possible
2014-02-26 19:33:39 +11:00
Andrew Tridgell 78ff078988 HAL_Linux: fixed stopped clock delay 2014-02-15 05:48:18 +11:00
Andrew Tridgell 117b77460e HAL_Linux: added stop_clock hack! 2014-02-15 05:28:08 +11:00
Andrew Tridgell ecbfdfba6c HAL_Linux: implement time_shift() API 2013-12-30 14:35:12 +11:00
Andrew Tridgell 5af51140a9 HAL_Linux: fixed scheduler initialisation bug in Linux HAL as well 2013-10-26 18:25:27 +11:00
Andrew Tridgell 0d682e74c1 HAL_Linux: run threads a bit more slowly
this was just wasting cycles
2013-10-10 07:21:38 +11:00
Andrew Tridgell 91511e6503 HAL_Linux: better realtime setup
lock all memory and pre-fault the stack in all threads
2013-10-08 11:50:53 +11:00
Andrew Tridgell 07b8f45770 HAL_Linux: use CLOCK_MONOTONIC_RAW to ensure clock never goes backwards
this avoids ntp mucking with APM timing
2013-10-07 08:41:52 +11:00
Andrew Tridgell c9fea2c706 HAL_Linux: fixed scheduling priorities
need to be between 1 and 99
2013-10-01 13:05:04 +10:00
Andrew Tridgell 51c19331a6 HAL_Linux: fixed build 2013-10-01 12:11:48 +10:00
Andrew Tridgell f2ebb2ca87 HAL_Linux: updates for AP_HAL::MemberProc 2013-09-30 20:56:15 +10:00
Andrew Tridgell 1698e1800c HAL_Linux: timer calls may block on HAL_Linux
timer calls can do SPI transfers, which can block
2013-09-29 10:48:22 +10:00
Andrew Tridgell 5102f1511b HAL_Linux: fixed callbacks from delay() 2013-09-29 10:32:51 +10:00
Andrew Tridgell a1ef1a9318 HAL_Linux: tweak the scheduling priorities 2013-09-29 12:04:37 +10:00
Andrew Tridgell 1e786b3e20 HAL_Linux: added buffering on the UARTs 2013-09-29 12:04:36 +10:00
Andrew Tridgell f03315237a HAL_Linux: fixed timer scheduler 2013-09-28 21:24:03 +10:00
Andrew Tridgell cca59ce3c9 HAL_Linux: update for new scheduler API 2013-09-28 21:24:02 +10:00
Andrew Tridgell bcf4f48e65 HAL_Linux: switched to pthread based scheduling 2013-09-28 21:24:02 +10:00
Andrew Tridgell 4ba044c441 AP_HAL_Linux: initial Linux AP_HAL 2013-09-28 21:24:01 +10:00