Commit graph

41120 commits

Author SHA1 Message Date
Radoslaw Koppel
f9be2c563d samples: subsys: usb: hid-mouse: Activate pull on switch pin
This commit would add the pull-up or pull-down on the switch pin and
makes it functional on the board where there is no external pull-up.

Signed-off-by: Radoslaw Koppel <radoslaw.koppel@nordicsemi.no>
2018-11-14 08:53:55 -05:00
Erwan Gouriou
1e31faad06 dts: stm32f4: Fix clock settings for usart1
Clock mask was not set correctly for usart1 in stm32f4.dtsi

Fixes #11339

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
2018-11-14 08:23:13 -05:00
Kumar Gala
f210d11970 boards: Remove including soc.h in board.h
We should let drivers or board code include soc.h directly so we can keep
board.h to local info for board specific code.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-14 06:44:02 -06:00
Kumar Gala
758d5b14a9 boards: Remove board.h from boards that don't need it
These boards don't need board.h to work so remove it.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-14 06:44:02 -06:00
Andrew Boie
9d14874db1 kernel: expose device_get_binding() to user mode
User mode may need to use this API to get a handle on
devices by name, expose as a system call. We impose
a maximum name length as the system call handler needs
to make a copy of the string passed in from user mode.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2018-11-13 19:06:05 -05:00
Savinay Dharmappa
f805343941 tests: boards: intel_s1000_crb: Add a test app to read/write from flash
patch test SPI flash on intel_s1000_crb board.

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-13 18:49:03 -05:00
Savinay Dharmappa
bc4d0faae6 board: xtensa: intel_s1000_crb: Add macronix flash support
patch enables necessary configs to add macronix flash
support for intel_s1000_crb board.

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-13 18:49:03 -05:00
Savinay Dharmappa
8c65c1f18c dts: bindings: slave: Add yaml file to support spi flash
add yaml file to support spi flash

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-13 18:49:03 -05:00
Savinay Dharmappa
cf58f83dd6 boards: xtensa: intel_s1000_crb: Enable SPI Master driver
patch enables SPI Master driver on intel_s1000_crb

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-13 18:49:03 -05:00
Savinay Dharmappa
eddfd537d2 arch: xtensa: Add I/O functions to read/write.
patch add I/O function to read / write from 16 bit
memory mapped registers

Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-13 18:49:03 -05:00
Savinay Dharmappa
87e5493167 drivers: flash: add a generic spi nor flash driver
This driver is inspired from the w25qxxdv SPI NOR flash driver which was
already implementing the CFI (Common Flash Interface) for its purpose.
To handle other NOR flash a flash id table (as Linux do) which contains
the geometry for a few SPI NOR flash based on their JEDEC ID has been
introduced.
We currently support the following flash:
 - W25Q80
 - W25Q16
 - W25Q32
 - S25FL216K
 - MX25UM512

The read and write functions are able to handle more then one page at a
time and return the number of bytes read or write.
Also because every NOR flash expect to disable the write protection
before writing or erasing, the write enable command is now part of the
write and erase functions.

Signed-off-by: Sebastien Bourdelin <sebastien.bourdelin@savoirfairelinux.com>
Signed-off-by: Savinay Dharmappa <savinay.dharmappa@intel.com>
2018-11-13 18:49:03 -05:00
Kumar Gala
128fef2c09 dts: Fix builds of arc EMSK & NSIM SoCs
With the DT_ prefix change we missed adding prefixes in dts_fixup.h
on snps_emsk & snps_nsim for ARC_ICCM_0_BASE_ADDRESS and
ARC_ICCM_0_SIZE.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-13 18:47:16 -05:00
Andy Ross
39b2a09f38 drivers/timer: New xtensa timer with tickless support
Rewritten Xtensa CCOUNT driver along the lines of all the other new
drivers.  The new API permits much smaller code.

Notably: The Xtensa counter is a 32 bit up-counter with a comparator
register.  It's in some sense the archetype of this kind of timer as
it's the simplest of the bunch (everything else has quirks: NRF is
very slow and 24 bit, HPET has a runtime frequency detection, RISC-V
is 64 bit...).  I should have written this one first.

Note also that this includes a blacklist of the xtensa architecture on
the tests/driver/ipm test.  I'm getting spurious failures there where
a k_sem_take() call with a non-zero timeout is being made out of the
console output code in interrupt context.  This seems to have nothing
to do with the timer; I suspect it's because the old timer drivers
would (incorrectly!) call z_clock_announce() in non-interrupt context
in some contexts (e.g. "expiring really soon").  Apparently this test
(or something in the IPM or Xtensa console code) was somehow relying
on that on Xtensa.  But IPM is a Quark thing and there's no particular
reason to run this test there.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
f04f797c2b drivers/timer: New, tickless-capable RISC-V machine timer driver
Rewritten driver along the lines of all the other new drivers,
implementing the new timer API.  Structurally, the machine timer is an
up-counter with comparator, so it works broadly the same way HPET and
NRF do.  The quirk here is that it's a 64 bit counter, which needs a
little more care.

Unlike the other timer reworks, this driver has grown by a few lines
as it used to be very simple.  But in exchange, we get full tickless
support on the platform.

Fixes #10609 in the process (the 64 bit timer registers are unlatched
for sub-word transfers, so you have to use careful ordering).

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
03f007edaf drivers/timer: Reworked NRF driver with tickless support
Reworked using the older hardware interface code, but with an
implementation of the new API only.  Much smaller & simpler.

As yet, tested (manually) only on a nrf52_pca10056 board.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
1c3051459b kernel/sched: Fix race in k_sched_time_slice_set()
If this function is itself interrupted by a timeslice event, the
slicing state can be corrupted.  Just re-use the scheduler lock
instead of using a new spinlock; this is a low-latency function that
won't deadlock.  Found by inspection.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
002a9f4cb7 drivers/timer/hpet: Completely new, simplified, tickless-capable driver
Rewritten along the lines of ARM SysTick.  Implements only the new,
simplified API.  MUCH smaller.  Works with tickless pervasively.  No
loss of functionality.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
9ff98f797a drivers/timer: Add more default stubs
Many drivers won't need to implement z_clock_idle_exit() or
sys_clock_disable(). Make those weak stubs too.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
c0a184c067 drivers/timer: Select tickless via driver kconfig flag
Add a TICKLESS_CAPABLE kconfig variable which is used by the kernel to
select tickless mode's default automatically on drivers that support
it (rather than having to set the default per-board).  Select it from
the ARM SysTick and Intel HPET drivers.

Also remove the old qemu_cortex_m3 default settings which this
replaces.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
ea35343eb1 tests/kernel/interrupt: Shrink very long k_busy_wait() argument
This test was written with an outrageously long timeout of 25 seconds.
That blows right through the 32 bit cycle counter on qemu_cortex_m3[1]
and produces an essentially random delay instead of the desired
number, causing a hang with the new SysTick driver in tickless mode.

Push the number down so it doesn't overflow.  The root cause, though,
is that k_busy_wait() can take arguments it can't handle.  It ought to
have an outer loop or something so that it can spin for INT_MAX
milliseconds correctly.

[1] Which has a 12MHz clock rate.  Many hardware implementations are
much faster still.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
4b305e1a25 tests/kernel/context: Limit no-tick-during-irq-load to !TICKLESS
When TICKLESS_KERNEL is enabled, the current time in ticks is based on
a hardware counter and not interrupt delivery (which is the whole
point of tickless), so irq-locking does not prevent time from
advancing.  Disable this test in that configuration.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
46891f0213 tests/kernel/benchmarks: Disable TICKLESS_KERNEL for "no tick" tests
These tests was written to try to eliminate timer interrupts, but the
mechanism chosen (setting TICKS_PER_SECOND to 1) is dangerously
susceptible to overflow conditions on systems with fast cycle counters
and high timeout durations.

Actually the tests pass just fine if you use a conventional tick rate
and use a tickless-capable driver (which eliminates interrupts too,
which is the whole point), but there's no easy way in kconfig to do an
"if" to select that condition for capable systems only.  Just disable
tickless to keep the same behavior.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
0f444c84e5 drivers/timer: Add a standard workaround for known qemu issues
Qemu doesn't like tickless.  By default[1] it tries to be realtime as
vied by the host CPU -- presenting read values from hardware cycle
counters and interrupt timings at the appropriate real world clock
times according to whatever the simulated counter frequency is.  But
when the host system is loaded, there is always the problem that the
qemu process might not see physical CPU time for large chunks of time
(i.e. a host OS scheduling quantum -- generally about the same size as
guest ticks!) leading to lost cycles.

When those timer interrupts are delivered by the emulated hardware at
fixed frequencies without software intervention, that's not so bad:
the work the guest has to do after the interrupt generally happens
synchronously (because the qemu process has just started running) and
nothing notices the dropout.

But with tickless, the interrupts need to be explicitly programmed by
guest software!  That means the driver needs to be sure it's going to
get some real CPU time within some small fraction of a Zephyr tick of
the right time, otherwise the computations get wonky.

The end result is that qemu tends to work with tickless well on an
unloaded/idle run, but not in situations (like sanitycheck) where it
needs to content with other processes for host CPU.

So, add a flag that drivers can use to "fake" tickless behavior when
run under qemu (only), and enable it (only!) for the small handful of
tests that are having trouble.

[1] There is an -icount feature to implement proper cycle counting at
the expense of real-world-time correspondence.  Maybe someday we might
get it to work for us.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
69ed8e4b46 boards/arm/qemu_cortex_m3: Make it tickless by default
The SysTick driver is working with tickless now.  Make this our first
guinea pig.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Andy Ross
c535300539 drivers/timer: New ARM SysTick driver
Newer, and much smaller driver written to the new timer API.  Supports
all the features the old one did (including shutting off the clock
when clock_always_on is disabled), should be faster in practice, and
should be significantly more accurate due to the "lost cycle" trick
applied in z_clock_set_timeout().

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2018-11-13 17:10:07 -05:00
Ulf Magnusson
4638652214 Kconfig: Use 'default' instead of 'def_bool' in Kconfig.defconfig files
This can help find unused symbols. Those end up without a type if
'default' is used instead of 'def_bool', which generates a warning.

Search for "Kconfig.defconfig" in
https://docs.zephyrproject.org/latest/application/kconfig-tips.html for
a longer explanation.

Keep the 'def_bool' for the following symbols, which seem to be
deliberately defined only in Kconfig.defconfig files:

 - ALTERA_AVALON_I2C
 - ALTERA_AVALON_MSGDMA
 - ALTERA_AVALON_PIO
 - ALTERA_AVALON_QSPI
 - ALTERA_AVALON_SYSID
 - CLOCK_CONTROL_IMX_CCM
 - CPU_EM4_DMIPS
 - CPU_EM4_FPUDA
 - CPU_EM4_FPUS
 - FP_FPU_DA
 - I2C_GECKO

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-11-13 16:04:01 -05:00
Ulf Magnusson
fc210ab505 Kconfig: Remove unused symbols defined only in Kconfig.defconfig files
Turning 'def_bool' in Kconfig.defconfig files into 'default' revealed
three unused symbols (confirmed with 'git grep'). Remove them.

Search for "Kconfig.defconfig" in
https://docs.zephyrproject.org/latest/application/kconfig-tips.html for
an explanation of how def_bool->default can reveal undefined symbols.

Removed unused symbols:

 - SPI_DW_CLOCK_GATE

 - PINMUX_MPS2

 - BOARD_XTENSA

Also remove an assignment to the promptless symbol ALTERA_AVALON_SYSID,
in tests/boards/altera_max10/sysid/prj.conf. Assignments to promptless
symbols have no effect.

Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2018-11-13 16:04:01 -05:00
Kumar Gala
0324423de6 samples: wifi: winc1500: Don't assume all GPIO pins on same controller
Change the sample to use a different controller device name per pin.  We
shouldn't assume that on a given board that all the pins we are using
will be on the same GPIO controller device.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-13 14:12:18 -05:00
Kumar Gala
9730ca1852 wifi: winc1500: Add Device Tree support
Add a dts binding for the Atmel WINC1500 WIFI chip.  Update the
quark_se_c1000_devboard to utilize this binding as well as the wifi
sample app.

We now get all the GPIOs related to the Atmel WINC1500 from the device
tree.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2018-11-13 14:12:18 -05:00
Luiz Augusto von Dentz
67e4710598 Bluetooth: shell: Make use of SHELL_CMD_ARG
Use SHELL_CMD_ARG to register commands.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2018-11-13 20:42:01 +02:00
Luiz Augusto von Dentz
b7c6ea4971 Bluetooth: shell: Remove macros to print messages
Make use of shell_print and shell_error now that they are available.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2018-11-13 20:42:01 +02:00
Luiz Augusto von Dentz
4add794570 Bluetooth: shell: Remove auto selecting of SERIAL
This is no longer needed and the shell itself will take care of
selecting SERIAL.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
2018-11-13 20:42:01 +02:00
Jukka Rissanen
279da528bc net: pkt: Print debug prints in one line
In earlier commit 15e7e3ea4 ("net: ip: Split debug prints into
smaller pieces"), the net_pkt debug prints were split to two
lines because of the argument count limitation in logging system.
As the logging subsystem increased the limit count in
commit 62d011549a ("logging: Support for up to 15 arguments in log
message") we can restore the original version as it is easier
to read.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
2018-11-13 12:54:27 -05:00
Andrzej Głąbek
20202902f2 dts_fixups: Use DT_ prefix in all defined labels not related to Kconfig
These changes were obtained by running a script  created by
Ulf Magnusson <Ulf.Magnusson@nordicsemi.no> for the following
specification:

1. Read the contents of all dts_fixup.h files in Zephyr
2. Check the left-hand side of the #define macros (i.e. the X in
   #define X Y)
3. Check if that name is also the name of a Kconfig option
   3.a If it is, then do nothing
   3.b If it is not, then replace CONFIG_ with DT_ or add DT_ if it
       has neither of these two prefixes
4. Replace the use of the changed #define in the code itself
   (.c, .h, .ld)

Additionally, some tweaks had to be added to this script to catch some
of the macros used in the code in a parameterized form, e.g.:
- CONFIG_GPIO_STM32_GPIO##__SUFFIX##_BASE_ADDRESS
- CONFIG_UART_##idx##_TX_PIN
- I2C_SBCON_##_num##_BASE_ADDR
and to prevent adding DT_ prefix to the following symbols:
- FLASH_START
- FLASH_SIZE
- SRAM_START
- SRAM_SIZE
- _ROM_ADDR
- _ROM_SIZE
- _RAM_ADDR
- _RAM_SIZE
which are surprisingly also defined in some dts_fixup.h files.

Finally, some manual corrections had to be done as well:
- name##_IRQ -> DT_##name##_IRQ in uart_stm32.c

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Andrzej Głąbek
d4a17b4085 soc: cc2650: Update DTS-derived labels with DT_ prefix
Update a couple of labels generated from DTS used directly (not through
dts_fixups) in TI CC2650 system initialization code and a few drivers
for this SoC.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Andrzej Głąbek
8dd11d9736 drivers: serial: Update DTS-derived labels with DT_ prefix
Update a couple of labels generated from DTS used directly (not through
dts_fixups) in some serial drivers, to the reflect recent changes made
to the extracting script.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Andrzej Głąbek
f39ba7230d dts_fixups: Update labels generated from DTS with DT_ prefix
All labels containing "_<8-hex-digits>_" or "16550_<3or6-hex-digits>_"
in their names, assumed to be generated by the extracting script,
are updated with the DT_ prefix, to reflect the recent changes made
to the script.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Andrzej Głąbek
a7c430f36f scripts: dts: Use DT_ prefix in generated labels
Almost all labels generated by the extracting script are now prefixed
with DT_. The only exceptions are:
- stuff with 'base_label' specified in yaml bindings
- items specified by 'regs_config' and 'name_config' dictionaries
  in globals.py module
- FLASH related labels generated by flash.extract() called separately
  from generate_node_definitions(), e.g. FLASH_WRITE_BLOCK_SIZE -
  these are used directly, not through fixups, from existing code
  so I didn't want to touch them now

Labels generated for aliases are additionally prefixed with information
from the 'compatible' property, e.g. DT_GPIO_LEDS_LED0_* is generated
instead of LED0_*. To provide backward compatibility for code that uses
LEDx_* and SWx_* labels in their previous forms, a command line option
named 'old-alias-names' is added to the extraction script. This option
causes that the labels for aliases are generated in both old and new
forms. Currently this option is always enabled in dts.cmake.

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
2018-11-13 10:44:42 -06:00
Alberto Escolar Piedras
917711fd8a ci: Run bsim_bt tests and collect coverage results
Compile and run the tests avaliable in bsim_bt
and collect the coverage results into the coverage report.

Also, detect if bsim's component folder already contains the
nRF52 HW models, and if it does instead of trying to fetch
them again (which will fail) check that the right versio is
present. This should ease testing locally.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 11:14:19 -05:00
Alberto Escolar Piedras
a822bc2241 tests: Add new bsim based encrypted BLE link test
Test which depends on the nrf52_bsim board.
It is based on the basic connection bsim test,
with the same pass/fail critaria.
The only difference being that the link will be encrypted
therefore exercising that part of the BLE stack.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 11:14:19 -05:00
Alberto Escolar Piedras
396d56e7c6 gitignore: Ignore default bsimt_bt test output folder
Similarly to sanitycheck the bsim_bt tests have their own
work folder where compilation output and coverage results are
kept.
Ignore the default folder

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 11:14:19 -05:00
Alberto Escolar Piedras
a325fdd575 tests bsim_bt: Add scripts to compile and run tests
The compile.sh script compiles the neccessary applications to run
all testcases.

The run_parallel.sh script runs all avaliable tests scripts
(e.g.
tests/bluetoothbsim_bt/bsim_test_app/tests_scripts/Basic_con.sh )
and reports which of them pass or fail.

Note that the run_parallel script will run the test in parallel
only if it can find GNU parallel (which is missing in CI),
otherwise it just runs them in serial

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 11:14:19 -05:00
Alberto Escolar Piedras
d21a36d981 tests bsim_bt: Add script to execute the basic connection test
A script which will execute:
* the peripheral sample
* the bsim_test_app (the actual self-testing application)
* the BabbleSim phy

This script will return
* 0 if the test passes
* something else otherwise

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 11:14:19 -05:00
Alberto Escolar Piedras
3983ccf583 tests: Add new BabbleSim based BT test
Test which depends on the nrf52_bsim board.
It is based on the central_hr sample application.
The testcase is considered passed, if during the first 5 seconds
after boot, it manages to find and connect to a
peripheral and a notification is received from it.
Otherwise, the testcase fails.
Note that the executable return code will reflect the status of the
test:
0: Testcase passed
1: Testcase was stopped while in progress
2: Testcase failed
anything else: A failure not from the testcase itself

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 11:14:19 -05:00
Sebastian Bøe
03ed0950e5 sanitycheck: Allow skipping the 'unrecognized section' test
Allow the user to disable the "unrecognized section" test. I can see
multiple use-cases for disabling the test.

If orphan sections exist and are dynamically or unpredictably named
the unrecognized section test will fail.

If out-of-tree sections exist, one might want to temporarily disable
the "unrecognized section" test until one has made it recognized.

The test is disabled through a CLI flag.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
2018-11-13 11:13:33 -05:00
Filip Kubicz
7c290b053d Bluetooth: settings: store CCC on write
By default, CCC value is only stored to persistent memory during
BT disconnection. This commit adds an optional storing of CCC right
after it has been updated. This results in better robustness of
peripheral but increases system workqueue stack usage.

Signed-off-by: Filip Kubicz <filip.kubicz@nordicsemi.no>
2018-11-13 16:36:49 +02:00
Pavel Kral
47f529829f logger: fix missing macro in RTT backend, when blocking mode is selected
This simple patch fix compiler error when RTT blocking mode is selected.

Signed-off-by: Pavel Kral <pavel.kral@omsquare.com>
2018-11-13 09:27:37 -05:00
Alberto Escolar Piedras
f1da7abc75 tests: kernel: context: Bugfix for POSIX arch in TICKLESS
In the POSIX architecture, with the inf_clock "SOC", time does
not pass while the CPU is running. Tests that require time to pass
while busy waiting should call k_busy_wait() or in some other way
set the CPU to idle. This test was setting the CPU to idle while
waiting for the next time slice. This is ok if the system tick
(timer) is active and awaking the CPU every system tick period.
But when configured in tickless mode that is not the case, and the
CPU was set to sleep for an indefinite amount of time.
This commit fixes it by using k_busy_wait(a few microseconds) inside
that busy wait loop instead.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 09:19:03 -05:00
Alberto Escolar Piedras
0682a51686 tests: kernel: sched: Bugfix for POSIX arch in TICKLESS
In the POSIX architecture, with the inf_clock "SOC", time does
not pass while the CPU is running. Tests that require time to pass
while busy waiting should call k_busy_wait() or in some other way
set the CPU to idle. This test was setting the CPU to idle while
waiting for the next time slice. This is ok if the system tick
(timer) is active and awaking the CPU every system tick period.
But when configured in tickless mode that is not the case, and the
CPU was set to sleep for an indefinite amount of time.
This commit fixes it by using k_busy_wait(a few microseconds) inside
that busy wait loop instead.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 09:19:03 -05:00
Alberto Escolar Piedras
018073b359 tests: kernel: tickless: Bugfix for POSIX arch in TICKLESS
In the POSIX architecture, with the inf_clock "SOC", time does
not pass while the CPU is running. Tests that require time to pass
while busy waiting should call k_busy_wait() or in some other way
set the CPU to idle. This test was setting the CPU to idle while
waiting for the next time slice. This is ok if the system tick
(timer) is active and awaking the CPU every system tick period.
But when configured in tickless mode that is not the case, and the
CPU was set to sleep for an indefinite amount of time.
This commit fixes it by using k_busy_wait(a few microseconds) inside
that busy wait loop instead.

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
2018-11-13 09:19:03 -05:00