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2420 commits

Author SHA1 Message Date
Andre Guedes e4ff61ff6c galileo: Support for rtimer library
This patch adds support for rtimer library on Galileo's platform.

We use the PIT to implement the rtimer platform dependent
functionalities. We chose the PIT for mainly two reason: I) its
configuration is very simple II) it has a high frequency which
provides us a good clock resolution (requirement from rtimer
library).

Since we keep track of the number of ticks in software, we define
rtimer_clock_t type as uint64_t. This gives us a good amount of time
til the variable overflows. For instance, a 32-bit type would overflow
in about one hour for high clock resolution (~ 1us).

The rtimer clock frequency (RTIMER_ARCH_SECOND) is setup to 1 kHz.
There is no technical matter regarding this value. It is just an
initial guess.

Just for the record, we might want to use HPET in future to
implement the rtimer library since it seems to be more appropriate.
The reason why we don't use it at this moment is that, in order to
configure it, we need support for ACPI 2.0 which we don't. Once we
have use-cases for the rtimer library we'll probably replace PIT
by HPET or any other timer more suitable for the job.
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia 7c871871de galileo: Add support for Etimer and Ctimer libraries
This patch adds support for the Etimer and Ctimer libraries. To support
the Etimer library, we should poll the etimer process every time the
system clock is updated. To do this more efficiently, by taking advantage
of etimer_next_expiration_time() API, we poll the etimer process only
when an 'Event Timer' has expired.

We don't need any platform specific support in order to enable the Ctimer
library since it relies completely on Etimer.

The others timer libraries (Timer and Stime) don't required any specific
platform support as well since they rely on the system Clock module only.
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia eafcba5e7a galileo: Add support for Clock module
This patch adds support for Contiki's clock module. All functions from
core/sys/clock.h are implemented, except clock_set_seconds() and clock_
delay_usec(). The CLOCK_CONF_SECOND macro is set to 128. This value
seems to be good enough since several platforms used it. Finally, we
use the RTC driver to track the number of ticks from the system clock.
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia 11098501d8 x86: Initialize the 8259 PIC
The Programmable Interrupt Controller is a chip responsible for
translating hardware interrupts to system interrupts. When it
receives an Interrupt Request (IRQ), it triggers the appropriate
interrupt line reaching the appropriate IDT gate, following a
previously setup offset.

There are 2 daisy-chained PICs. PIC1 handles IRQs 0-7 and PIC2
handles IRQs 8-15. If no vector offset is set, an IRQ0, for instance,
would trigger the interrupt 0, clashing with the "Division by zero exception"
handler. Thus the IRQs must be remapped.

This patch implements the PICs initialization through their 4
Initialization Command Words (ICWs) in a very "canonical" way:
- ICW1: the initializing command;
- ICW2: the vector offset for the PIC1 and PIC2 (we add an offset of 32 positions);
- ICW3: the inter-PICs wiring setup (we connect PIC2 to PIC1's IRQ2);
- ICW4: extra systems information (we set PIC1 as Master and PIC2 as slave).

It then masks the Interrupt Mask Register, blocking all IRQs but #2 initially.
These must be unmasked on demand. The IMR is 8-bits long, so setting the n^th bit to 1
would DISABLE the IRQ n while setting it to 0 would ENABLE IRQ n.

As stated, this is an implementation of the legacy 8259 PIC. More
investigation is needed so we decide if it is enough or if we need
the (newer) APIC implementation instead.

This patch also adds the outb() helper function to helpers.h. The helpers
is a wrapper for assembly 'out' instruction.

Finally, since we now properly support hardware interrupts, this patch
also enables IRQs in platform main().

More information:
- Quark X1000 Datasheet, section 21.12, page 898.
- http://wiki.osdev.org/8259_PIC
- http://stanislavs.org/helppc/8259.html
2015-12-21 08:06:14 -02:00
Andre Guedes f6644d9208 x86: CPU Initialization
This patch defines the cpu_init() function which should encapsulate
all code related to x86 CPU initialization. For now, this function
initializes GDT and IDT.
2015-12-21 08:06:14 -02:00
Andre Guedes b8feaea30d x86: Add helpers.h
This patch adds the helpers.h. This file should contain only x86-related
helper functions and macros. For now, we define the BIT macro and halt()
helpers which will be used in upcoming patches.

Additionally, this patch also changes loader.S to call the halt().
2015-12-21 08:06:14 -02:00
Andre Guedes 6ecc4a7371 galileo: Implement main() function
This patch implements the main() function for Galileo platform. At this
moment, only Processes subsystem is enabled. After this patch we are
able to some rudimentary debugging to ensure that process thread from
applications are being indeed executed.

Once we properly support more Contiki subsystems, such as clock, ctimer,
etimer, and rtimer, we will add them to Galileo platform's main() as well.
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia 595088be09 galileo: Add a bootstrap stack for C runtime
All we need to provide to C at this point is a region in memory dedicated to
its stack. This is done by allocating a region in .bss and pushing its start
address to esp. Since the multiboot spec says it is not safe to rely on the
initial stack provided by the bootloader, this patch provides our own stack.

Galileo boards have 512Kb of SRAM and 256Mb of DDR3 RAM, so providing 8kb as
a start seems safe. Moreover, stack sizes are very application-oriented
so it may be too early to provide a bigger (or smaller) stack.
2015-12-21 08:06:14 -02:00
Andre Guedes 7a1898f73e galileo: Halt if main() returns
This patch adds extra intrunctions to loader.S so we halt if main()
returns.
2015-12-21 08:06:14 -02:00
Andre Guedes 7e13081776 galileo: Print elf sections sizes after build
This patch changes Galileo's buildsystem to print the elf sections
sizes after a new image is built. This way we can easily track how
these sections increase or decrease after any change.

To achieve that, we define a custom linking rule which is pretty much
the same as the default linking rule define in Makefile.include, but
we run 'size' command after the image is built.
2015-12-21 08:06:14 -02:00
Andre Guedes e820a8b03b galileo: Add README file
This patch adds a README file which contains general information about
the Intel Galileo board support. The file provides information about
supported features as well as instructions on how to build, run and debug
applications for this platform.
2015-12-21 08:06:14 -02:00
Andre Guedes 1fb7800110 galileo: Add 'debug' rule
This patch the 'debug' rule to simplify the debugging process. This new
rule runs OpenOCD and gdb with the right parameters. OpenOCD runs in
background and its output will be redirected to a log file in the
application's path called LOG_OPENOCD. Once gdb client is detached,
OpenOCD is terminated.

The 'debug' rule is defined in Makefile.customrules-galileo file (create
by this patch) which is included by the Contiki's buildsystem. So to
debug a Contiki application for Galileo board, run the following command:
$ make TARGET=galileo debug

If you use a gdb front-end, you can define the "GDB" environment variable
and your gdb front-end will be used instead of default gdb. For instance,
if you want to use cgdb front-end, just run the command:
$ make BOARD=galileo debug GDB=cgdb
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia f14f9aba41 galileo: Initial support for Intel Galileo Platform
This patch adds the initial support for Intel Galileo Platform. It
contains the minimum set of code required to boot a dummy Contiki
image.

For Galileo initial support, we implemented a linker script, a minimal
bootstrap code, a set of stubbed functions required by newlib, and a
very simple main() function. Moreover, we also define some header files
and macros required by Contiki.

To build applications for this platform you should first build newlib
(in case it wasn't already built). To build newlib you can run the
following command:
$ platform/galileo/bsp/libc/build_newlib.sh

Once newlib is built, you can build applications. To build applications
for Galileo platform you should set TARGET variable to 'galileo'. For
instance, building the hello-world application should look like this:
$ cd examples/hello-world/ && make TARGET=galileo

This will generate the 'hello-world.galileo' file which is a multiboot-
compliant [1] ELF image. This image can be booted by any multiboot-
complaint bootloader such as Grub.

Finally, this patch should be used as a guideline to add the initial
support for others platforms based on x86 SoCs.

[1] https://www.gnu.org/software/grub/manual/multiboot/multiboot.html
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia c9897fe9b0 galileo: Add BSP files
This patch creates the platform/galileo/bsp directory. This directory
contain all files related to Galileo's Board Support Package (BSP). For
now, the BSP consists of libc and bootloader.

Within the BSP directory, we have the scripts build_newlib.sh and build_
grub.sh. These scripts provide an easy and quick way to build the newlib
and the grub for the Galileo platform.
2015-12-21 08:06:14 -02:00
Jesus Sanchez-Palencia 3a26d9dbc7 x86: Only add elfloader-x86.c to the platforms using it
Currently there are only one platform using CPU x86: Cooja. The
elfloader-x86.c is rather a POSIX implementation, so the Galileo port
won't use it for now. This patch fixes this by moving this source file to
be included by the platforms using it instead of the cpu's Makefile.
2015-12-21 08:06:14 -02:00
Joakim Eriksson e4744d1e59 fixed make login for Zoul on MAC 2015-12-19 10:28:30 +01:00
Antonio Lignan 834f965c95 Added support for the RE-Mote on-board Real Time Clock Calendar (RTCC) 2015-12-16 18:43:33 +01:00
Simon Duquennoy cc58384b40 jn516x: remove temporary adjustements for compilation in a 802.15.4e-free Contiki 2015-12-07 11:51:50 +01:00
Atis Elsts d79ce957a1 Adaptive time synchronization for TSCH 2015-12-07 11:51:41 +01:00
Simon Duquennoy 20c97367a9 Adding definitions required for TSCH to the sky and z1 platforms 2015-12-04 15:21:53 +01:00
Simon Duquennoy bc17cdca2c Merge pull request #1408 from simonduq/pr/jn516x-update
JN516x: tickless clock, power saving update, 32 kHz rtimer
2015-12-03 14:59:53 +01:00
Simon Duquennoy 3ff44f77b9 jn516x: added sleep modes, support for 32kHz rtimer, and tickless clock 2015-12-03 13:57:19 +01:00
George Oikonomou 27835eee2c Merge pull request #1399 from alignan/pull/pwm-driver
Added PWM driver for the Zolertia Zoul module and CC2538 platforms
2015-12-02 15:39:52 +00:00
Simon Duquennoy ebc8d9fb1c Merge pull request #1344 from tsparber/fix-doxygen
doxygen: Fixed all warnings
2015-11-30 22:07:15 +01:00
Cristiano De Alti 2e78558964 AVR platforms: use 32 bit clock_time_t. 2015-11-28 10:18:22 +01:00
Nicolas Tsiftes 6def22b3c5 Merge pull request #1376 from sumanpanchal/wismote-uart1-dma
Wismote : Direct memory access using UART.
2015-11-26 11:08:43 +01:00
Antonio Lignan 37fcb927be Added PWM driver for the Zolertia Zoul module and CC2538 platforms 2015-11-25 23:56:29 +01:00
Marco Grella 65e1fed1bc Added contacts for stm32nucleo-spirit1 platform. 2015-11-25 12:56:42 +01:00
Marco Grella e47c69c170 Merge remote-tracking branch 'upstream/master' into stm32nucleo-spirit1 2015-11-25 12:36:01 +01:00
Antonio Lignan bea4ff164d Changed Makefile.zoul as done in previous BSL commit 2015-11-24 21:27:56 +01:00
Antonio Lignan 0775de9732 Fixed really big test value leftover 2015-11-24 21:15:34 +01:00
Antonio Lignan aa9eb5264f Fixed warning related to gpio_callback_t type 2015-11-24 21:15:34 +01:00
George Oikonomou 8727fef05b Fix code style: platform/zoul 2015-11-24 21:15:34 +01:00
Antonio Lignan afa5ab1ae4 Updated README 2015-11-24 21:15:34 +01:00
Antonio Lignan daa3ce415c Fixed typos 2015-11-24 21:15:33 +01:00
Antonio Lignan 27fd1a5eb8 Updated RE-Mote revision A support and cleaning up Zolertia platforms 2015-11-24 21:15:33 +01:00
George Oikonomou e75bdd00e7 Remove duplicate block and define the argument of -a using $(shell) 2015-11-24 13:10:10 +00:00
Jelmer Tiete 1efeda4283 Added the PORT make variable to the cc2538dk and Remote makefile. Fixed bug in these makefiles on OSX introduced in #1162 2015-11-23 11:28:34 -08:00
Jelmer Tiete 715946ece3 Restructured cc26xx readme, included use of .upload and PORT variable. Added sleepy demo example to examples section. 2015-11-23 11:09:06 -08:00
Jelmer Tiete 9a8e749f6f Updated cc26xx Readme to mention serial upload script 2015-11-23 11:09:05 -08:00
Jelmer Tiete d01d53978c Removed forced upload speed for the RE-MOTE platform 2015-11-23 11:09:05 -08:00
Jelmer Tiete 97095c8bb5 Updated makefiles of srf06 platform to support uploading via cc2538-bsl script 2015-11-23 11:07:19 -08:00
George Oikonomou 41ea0308a3 Merge pull request #1390 from tsparber/fix-doxygen-whitespace
Cleanup some trailing spaces and convert tabs to spaces
2015-11-22 11:53:01 +00:00
Simon Duquennoy ba8552555a Merge pull request #1389 from simonduq/pr/update-jn516x
JN516x: minor fixes
2015-11-21 12:12:55 +01:00
Simon Duquennoy 673d1d103b JN516x: minor fixes 2015-11-21 10:23:15 +01:00
Benoît Thébaudeau 5d98cb71e2 cc2538: Add support for Coffee
Coffee is placed by default at the beginning of the flash memory, right
before the firmware. This avoids the memory gaps that there could be
before and after Coffee if it were placed after the firmware, because it
is unlikely that the end of the firmware is aligned with a flash page
boundary, and the CCA is not flash-page-aligned. Thanks to that, Coffee
is also always in the same flash area if its size remains unchanged,
even if the firmware changes, which makes it possible to keep the Coffee
files when reprogramming the firmware after a partial flash erase
command.

The default configuration of Coffee is set to use sensible values for a
typical usage on this SoC, i.e. for sensor data logging.

The default size of Coffee is set to 0 in order not to waste flash if
Coffee is unused.

COFFEE_CONF_CUSTOM_PORT can be defined to a header file to be used with
"#include" in order to override the default CC2538 port of Coffee. This
makes it possible to use Coffee with an external memory device rather
than with the internal flash memory, without having to alter the Contiki
files.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:22:58 +01:00
Benoît Thébaudeau cbcf1262d6 cc2538: upload: Support .bin not starting at beginning of flash
Depending on the linker script, the generated .bin file may start beyond
the beginning of the flash memory. However, no target address was passed
to cc2538-bsl.py by the upload make target, so it used the beginning of
the flash memory in all cases.

The load address of the lowest loadable output section is now passed to
cc2538-bsl.py. The start address of the .text output section or the
address of the _text symbol could have been used too, but this would not
have been compatible with all the possible custom linker scripts.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:22:58 +01:00
Benoît Thébaudeau 790c253d6d cc2538: Define and use device features
Define the available CC2538 devices and their features, and use them to
define the linker script memory regions. The .nrdata output section is
now always defined in order to trigger an error if it is used but no
memory is available for it. The CC2538 device used by Contiki is made a
configuration option, the CC2538SF53 device being the default.

This makes more sense than defining the flash memory address and size as
configuration options like previously, all the more not all values are
possible and all the features are linked by each device.

This change also makes it possible to:
 - use the correct SRAM parameters for the CC2538NF11,
 - know at build time if the AES, SHA, ECC and RSA hardware features are
   available on the selected CC2538 device.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
2015-11-19 01:18:33 +01:00
Tommy Sparber 938a425949 Cleanup trailing spaces and convert tabs to spaces
This commit removes trailing spaces and converts
tabs to spaces in all files affected by fix-doxygen PR.
2015-11-18 11:09:43 +11:00
Tommy Sparber 938d17576b doxygen: Fix many warnings
This commit fixes nearly all of the reported doxygen warnings.

I tried to not clutter the log with removed trailing spaces.
Removed whitespace and converted tab/spaces for all files affected by this commit
are in a separate branch.
2015-11-18 11:07:58 +11:00