SAMD driver suffered from following problems:
1) Flash was erased as an integral part of flash write.
It was not documented so with usual workflow it resulted
in erasing flash twice (and reducing flash lifespan)
and in almost double flashing time.
2) Sector erase was silently skipped if "is_erased" flag was set.
"is_erased" logic was not reliable, e.g. when a row write
was aborted after successful write of some pages, sector was
still considered as erased. "is_erased" flag could not
cope with flash writes from a user program.
3) Writing of a block with start address unaligned to a flash page
resulted in failed assert and OpenOCD abort.
4) Disabling cache in bit 18 of 16-bit halfword never worked.
MCU implements cache invalidate in hardware so there is no need
to take care about. This bug was reported by Tony DiCola.
New code does not erase flash in write operation.
Instead it traditionally relies on erasing flash beforehand.
"is_erased" logic and cache disabling is completely removed.
It simplifies write procedure a lot and flash write is now faster.
The change partly solves ticket #109 SAMD/SAM4L driver doubles flash erase.
Change-Id: I582b497d01a351575533a1f8c9810a4413be0216
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/3045
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
This adds support for the Atmel SAML21 variant B parts.
There is minimal change between the two variants, but in
variant B the automatic page write which the at91samd flash
driver relies on to be enabled is disabled by default.
With this patch the write row function will now issue a page write
command after each of the four pages in the row if the MANW (manual
write) bit is set. This also fixes flash write for the SAMC20/SAMC21
devices which have the MANW bit set by default as well.
I have also moved the device ID (DID) register bitfield extraction
from the find_part into helper macros. These can be used in the future
if there are more workarounds for specific devices.
Tested (programming) on:
ATSAML21-XPRO
ATSAML21-XPRO-B
SAMC21 Xplained Pro
SAMD21 Xplained Pro
SAMD20 Xplained Pro
Change-Id: I401a8aa1efd64730840c0d62cf49a1e880ea5900
Signed-off-by: Andreas Loehre <alohre@gmail.com>
Reviewed-on: http://openocd.zylin.com/2903
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
cmsis-dap protocol has both DAP_Connect and DAP_Disconnect commands.
Logically if cmsis_dap_swd_switch_seq() calls DAP_Connect in connected
state it should call DAP_Disconnect first.
Doing so surprisingly solves problems on Atmel EDBG with target SAMD/R/L/C.
Without this change SWD communication breaks after reset run/halt
in config "reset_config srst_only" and reconnect trials repeatedly
fail with "SWD ack not OK: 0 JUNK"
Change-Id: Ie951098d5e0c83f388e2df414608aaabec2135c9
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/3098
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Atmel introduced a "Device Service Unit" (DSU) that holds the CPU
in reset if TCK is low when srst (RESET_N) is deasserted.
Function is similar to SMAP in ATSAM4L, see http://openocd.zylin.com/2604
Atmel's EDBG adapter handles DSU reset correctly without this change.
An ordinary SWD adapter leaves TCK in its default state, low.
So without this change any use of sysresetreq or srst
locks the chip in reset state until power is cycled.
A new function dsu_reset_deassert is called as reset-deassert-post event handler.
It optionally prepares reset vector catch and DSU reset is released then.
Additionally SWD clock comment is fixed in at91samdXX.cfg and clock is
lowered a bit to ensure a margin for RC oscillator frequency deviation.
adapter_nsrst_delay 100 is commented out because is no more necessary after
http://openocd.zylin.com/2601
Change-Id: I42e99b1b245f766616c0a0d939f60612c29bd16c
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2778
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
According to Infineon, XMC4500 EES AA13 with date codes before GE212 -
as seen on an XMC4500 General App Kit - had a zero SCU_IDCHIP register.
Handle this by extending our checks to not error out on zero SCU_IDCHIP
and by printing a useful info string in that case.
Change-Id: Ic2d641a314627dd5a1ff775a0113999191b95e3d
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2751
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Jeff Ciesielski <jeffciesielski@gmail.com>
This is a complete flash driver for the Infineon XMC4xxx family of
microcontrollers, based on the TMS570 driver by Andrey Yurovsky.
The driver attempts to discover the particular variant of MCU via a
combination of the SCU register (to determine if this is indeed an
XMC4xxx part) and the FLASH0_ID register (to determine the variant).
If this fails, the driver will not load.
The driver has been added to the README and documentation.
Tests:
* Hardware: XMC4500 (XMC4500_relax), XMC4200 (XMC4200 enterprise)
* SWD + JTAG
* Binary: 144k, 1M
Note:
* Flash protect only partly tested. These parts only allow the flash
protection registers (UCB) to be written 4 times total, and my devkits
have run out of uses (more on the way)
Future Work:
* User 1/2(permalock) locking support via custom command
* In-memory flash loader bootstrap (flashing is rather slow...)
Change-Id: I1d3345d5255d8de8dc4175cf987eb4a037a8cf7f
Signed-off-by: Jeff Ciesielski <jeffciesielski@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2488
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This is a driver for the Atmel Cortex-M7 SAMV, SAMS, and SAME.
I started with the at91sam4.c driver and then restructured it
significantly to try to simplify it and limit the functionality
to just a flash driver, as well as to comply with the style guide.
Change-Id: I5340bf61f067265b8ebabd3adad45be45324b707
Signed-off-by: Morgan Quigley <morgan@osrfoundation.org>
Reviewed-on: http://openocd.zylin.com/2952
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Commit 68101e67ac introduced a
regression which resulted for ever-growing registers list (as output
by "reg" command), its contents were doubled every reset (actually,
every examination).
Change-Id: Ie3409c795160a2fc840a5e8a892928df0bcc0c57
Reported-by: Daniele Emancipato <daniele12457@hotmail.com>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3100
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
This patch brings the calculation of the address ranges handled by
ttbr0 and ttbr1 registers in line with ARM DDI 0406C, Table B3-1
Change-Id: Ib807c4b1cb328a6f661e1a0898e744e60d3eccac
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3006
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
If ttbcr is changed after the debugger has examined a target for the
first time, address translations may fail. This problem does not show up
with Linux because it doesn't use ttbr1, but it shows with other OS that
use this feature. If the debugger connects to the target while it's in
u-boot, all address translations will fail after the OS has booted and
the target can not be debugged.
This patch reads the ttbcr in armv7a_mmu_translate_va() and compares it
a cached value. If a difference is detected, armv7a_read_ttbcr() is called
to re-parse the ttb configuration and update the cache.
Change-Id: I1c3adf53ea9d748a0e1e3091d9581e5c43ed64e8
Signed-off-by: Matthias Welwarsky <matthias@welwarsky.de>
Reviewed-on: http://openocd.zylin.com/3005
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
kinetis_write() with byte count not divisible by prog_section_chunk_bytes
computed wrong wc and therefore paded section chunk by some
random data instead of 0xff
Change-Id: Ic7c66d8a3ceacda9e611e98b9fbf943b8001774b
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2994
Tested-by: jenkins
Reviewed-by: Thomas Schmid <thomas@rfranging.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Kx devices with FTFA flash need the watchdog disabled when programming.
I tried to keep overhead as small as possible and re-use registers that
were already inquired (e.g. sim_sdid).
Change-Id: Ibc29a26ec34102d78a6c3920dd16f63e134a8f6f
Signed-off-by: Thomas Schmid <thomas@rfranging.com>
Reviewed-on: http://openocd.zylin.com/2986
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
This makes it easier to relocate the install tree of OpenOCD from where
it was originally built (for example, if put onto a different machine),
without having to change scripts or add something to the command line
every time.
Change-Id: Ia5edf0eba166f7a999f267bd6a92402dab9b399e
Signed-off-by: Jonathan Larmour <jifl@eCosCentric.com>
Reviewed-on: http://openocd.zylin.com/3004
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
The memory leak occurs when opening a file fails. It can be
reproduced by using the "flash verify_bank" command with a filename
that does not exist.
Change-Id: I60b7b545c18793d750ff75d08124fde3f0aa6f64
Signed-off-by: Marc Schink <openocd-dev@marcschink.de>
Reviewed-on: http://openocd.zylin.com/2998
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
If we work on smp system, the output of step command will depend
on Id of default target.
This patch adds additional information to help find what on which
core is happening.
Example of LOG after this patch.
imx6.cpu.1: target state: halted
^^^^^^^^^^
target halted in ARM state due to breakpoint, current mode: Supervisor
cpsr: 0x60000093 pc: 0x80076c0c
MMU: enabled, D-Cache: enabled, I-Cache: enabled
imx6.cpu.0: target state: halted
^^^^^^^^^^
target halted in ARM state due to debug-request, current mode: Supervisor
cpsr: 0x20000193 pc: 0x802ccb6c
MMU: enabled, D-Cache: enabled, I-Cache: enabled
Change-Id: I536a2cce33b5ab10af9de2a43b9960320c17729f
Signed-off-by: Oleksij Rempel <external.Oleksij.Rempel@de.bosch.com>
Reviewed-on: http://openocd.zylin.com/2691
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
A segmentation fault in cortex_m_endreset_event() is sometimes raised
with very broken target like Kinetis Kx with erased flash and active WDOG.
Debugging revealed that cortex_m->dwt_num_comp is 4 and
dwt_list is NULL at cortex_m:290
Change-Id: I229c59d6da13d816df513d1dbb19968e4b5951e2
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2989
Reviewed-by: Thomas Schmid <thomas@rfranging.com>
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Memory for the symbol table was allocated by malloc but not initialized other
than with the symbol name. Therefore `address` and `optional` members were
having arbitrary values leading to every symbol being optional most of the
time which messes up RTOS auto-detection. Memory will now be zero-initialized
as in other RTOS implementations.
Change-Id: I6c6e31ec1ef7e043061adf8c695b2139620e005d
Signed-off-by: Daniel Krebs <github@daniel-krebs.net>
Reviewed-on: http://openocd.zylin.com/3017
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
According to "man 2 poll" the correct header to include is poll.h, not
sys/poll.h. Reported by a build against musl.
Change-Id: I5298b49dc947d1a368e423104c0c0c7b9bdd1a10
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2947
Tested-by: jenkins
In the case that the STKALIGN bit is set on Cortex M processors, on
entry to an exception - the processor can store an additional 4 bytes
of padding before regular stacking to achieve 8-byte alignment on
exception entry. In the case that this padding is present, the
processor will set bit (1 << 9) in the stacked xPSR register. Use the
new calculate_process_stack callback to take into account the xPSR
register and use it on the standard Cortex_M3 stacking.
Note: Change #2301 had some misinformation regarding the padding. On
Cortex-M the padding is stored BEFORE stacking so xPSR is always
available at a fixed offset.
Tested on a Cortex-M0+ (Atmel SAMR21) board which has STKALIGN fixed
to a '1' such that this alignment always occurs on non-aligned stacks.
Behavior of xPSR verified via the (bad-sorry) assembly program below by
setting a breakpoint on the SVC_Handler symbol. The first time
SVC_Handler is triggered the stack was 0x20000ff8, the second time
SVC_Handler is triggered the stack was 0x20000ffc. Note that in both
cases the interrupt handler gets 0x20000fd8 for a stack pointer.
GDB exerpt:
Breakpoint 1, 0x000040b6 in Reset_Handler ()
(gdb) hbreak SVC_Handler
Hardware assisted breakpoint 2 at 0x40f8
(gdb) cont
Continuing.
Breakpoint 2, 0x000040f8 in SVC_Handler ()
(gdb) print $msp
$3 = (void *) 0x20000fd8
(gdb) x/9w $msp
0x20000fd8: 0x1 0x2 0x3 0x4
0x20000fe8: 0x88160082 0xa53 0x40ce 0x21000000
0x20000ff8: 0x0
(gdb) cont
Continuing.
Breakpoint 2, 0x000040f8 in SVC_Handler ()
(gdb) print $msp
$4 = (void *) 0x20000fd8
(gdb) x/9w $msp
0x20000fd8: 0x1 0x2 0x3 0x4
0x20000fe8: 0x88160082 0xa53 0x40e8 0x21000200
0x20000ff8: 0x0
Assembly program:
.cpu cortex-m0plus
.fpu softvfp
.thumb
.syntax unified
.section .vectors
@ pvStack:
.word 0x20001000
@ pfnReset_Handler:
.word Reset_Handler + 1
@ pfnNMI_Handler:
.word 0
@ pfnHardFault_Handler:
.word 0
@ pfnReservedM12:
.word 0
@ pfnReservedM11:
.word 0
@ pfnReservedM10:
.word 0
@ pfnReservedM9:
.word 0
@ pfnReservedM8:
.word 0
@ pfnReservedM7:
.word 0
@ pfnReservedM6:
.word 0
@ pfnSVC_Handler:
.word SVC_Handler + 1
.section .text
.global Reset_Handler
Reset_Handler:
cpsie i
ldr r0, .stack_start
ldr r2, .stack_last
eors r1, r1
.loop_clear:
str r1, [r0]
adds r0, r0, #4
cmp r0, r2
bne .loop_clear
subs r2, r2, #4
mov sp, r2
movs r0, #1
movs r1, #2
movs r2, #3
movs r3, #4
svc #0
ldr r0, .stack_start
ldr r2, .stack_last
eors r1, r1
.loop_clear2:
str r1, [r0]
adds r0, r0, #4
cmp r0, r2
bne .loop_clear2
mov sp, r2
movs r0, #1
movs r1, #2
movs r2, #3
movs r3, #4
svc #0
.loop:
b .loop
.align 4
.stack_start:
.word 0x20000f00
.stack_last:
.word 0x20000ffc
@ first call - 0x2000fff8 -- should already be aligned
@ second call - 0x2000fffc -- should hit the alignment code
.global SVC_Handler
SVC_Handler:
bx lr
Change-Id: Id0940e6bbd6a59adee1378c0e86fe86830f0c8fc
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Cc: Paul Fertser <fercerpav@gmail.com>
Cc: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Cc: Evan Hunter <evanhunter920@gmail.com>
Cc: Jon Burgess <jburgess777@gmail.com>
Reviewed-on: http://openocd.zylin.com/3003
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Some targets (Cortex M) require more complicated calculations for
turning the stored stack pointer back into a process stack pointer.
For example, the Cortex M stores a bit in the auto-stacked xPSR
indicating that alignment had to be performed and an additional 4
byte padding is present before the exception stacking. This change
only sets up the framework for Cortex-M unstacking and does not
add Cortex-M support.
Note: this also fixes the alignment calculation nearly addressed by
change #2301 entitled rtos/rtos.c: fix stack alignment calculation.
Updated calculation is in rtos_generic_stack_align.
Change-Id: I0f662cad0df81cbe5866219ad0fef980dcb3e44f
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Cc: Paul Fertser <fercerpav@gmail.com>
Cc: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Cc: Evan Hunter <evanhunter920@gmail.com>
Cc: Jon Burgess <jburgess777@gmail.com>
Reviewed-on: http://openocd.zylin.com/3002
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tested-by: jenkins
Intel is relicensing our contributions to OpenOCD under GPL
version 2 or any later version. We previously contributed code
under GPL version 2 only. It was not our intention to differ
from the standard OpenOCD license. We're correcting that here.
This also applies retroactively to previous versions of our
contributions to OpenOCD.
Change-Id: I5e831ed95d03d2044d8e5a8375b21c6e52c933d7
Signed-off-by: Ivan De Cesaris <ivan.de.cesaris@intel.com>
Reviewed-on: http://openocd.zylin.com/3044
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
K22FN1M0 and K22FX512 has FTFE flash and old style SDID.
K22FN128, 256 and 512 has FTFA flash and new style SDID
K63 and K64 detects as K61 and K62, see Errata 1N83J e7534
Change-Id: I2aca6f1f18819bb2b2ec4982036510de444ad2ac
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2867
Tested-by: jenkins
Reviewed-by: Thomas Schmid <thomas@rfranging.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Patrick Stewart <patstew@gmail.com>
max_flash_prog_size euals to pflash_sector_size_bytes for most of devices.
There is no point setting max_flash_prog_size for devices without
FS_PROGRAM_SECTOR capability.
Check for zero sector_size to avoid div by zero exception in case of
device has FlexNVM but the driver does not define nvm_sector_size_bytes
Change-Id: Iaf4e007fb1ec3d24c373350410e4bebe504a4c3e
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/2958
Tested-by: jenkins
Reviewed-by: Thomas Schmid <thomas@rfranging.com>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-by: Patrick Stewart <patstew@gmail.com>
The K24 uses the KL-style SDID register and has some flashing quirks, so the kinetis driver does not support it properly.
Extend the chip detection routine to support the new SDID format. Add a parameter for the maximum flash size, as the K24 only supports 1k flashing blocks but has 4k sector size. Remove global 'granularity' array, as it's only really needed in one function. Replace 'klxx' with an enum showing which flash commands are actually supported on a given chip.
Signed-off-by: Patrick Stewart <patstew@gmail.com>
Change-Id: Ie244fab564d58c5cfe4fa36a025f0b2674ffad69
Reviewed-on: http://openocd.zylin.com/2864
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Change-Id: I3cf5ced568319878b8bf40743e4c07718f630c68
Signed-off-by: Jim Paris <jim@jtan.com>
Reviewed-on: http://openocd.zylin.com/2953
Tested-by: jenkins
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Flash driver "mini51.c" and "nuc1x.c" are same target MCU.
This patch integrates each driver and functions,
and makes into new "NuMicro" flash driver.
Change-Id: Ifff5c1cfdd265acca0f489631695be9194fa144c
Signed-off-by: Nemui Trinomius <nemuisan_kawausogasuki@live.jp>
Reviewed-on: http://openocd.zylin.com/2794
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
A target config and a simple flash driver for the ADuCM360 microcontroller.
The EEPROM of the chip may be erased and programmed.
Change-Id: Ic2bc2f91ec5b6f72e3976dbe18071f461fe503b8
Signed-off-by: Ivan Buliev <i.buliev@mikrosistemi.com>
Reviewed-on: http://openocd.zylin.com/2787
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
Tested-by: jenkins
The problem was reported by jstefanop on IRC, the SVF was generated with
Xilinx ISE 14.7.
Found and investigated with Valgrind's vgdb service.
Change-Id: I32b0e77e0380ce4a391661f97449f9c2a5f83625
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/2933
Tested-by: jenkins
Currently, the maximum size of a command sent to the TCL server is
4k. This patch increases this limit up to 4M.
Reasoning:
To get high-speed JTAG data transfers, I'm using a very long shift
register. This reduces the overhead of the state changes, as well as the
latency due to the common USB adapter transfers considerably. In order
to submit those long DRSCAN commands to OpenOCD over the TCL/TCL
interface, long TCL command lines are required. This is enabled by this
patch.
v3:
Address review comments. Drop line instead of connection when realloc()
fails.
Changes in v2 of this patch:
The line buffer is allocated dynamically to avoid an OpenOCD memory
overhead if the large buffers are not used. The buffer starts at 4K and
increases exponentially up to 1M, and then linearly in 1M increments up
to 4M.
Change-Id: Iecaef6a56ed5e18e9de4d912a514031ea78fa3bd
Signed-off-by: Philipp Wagner <philipp.wagner@tum.de>
Reviewed-on: http://openocd.zylin.com/2837
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Add constant CONNECTION_LIMIT_UNLIMITED which indicates a service
has no connection limit
Change-Id: I008d31264010c25fa44ca74eb6d5740eca38bee1
Signed-off-by: Austin Morton <austinpmorton@gmail.com>
Reviewed-on: http://openocd.zylin.com/2937
Tested-by: jenkins
Reviewed-by: Paul Fertser <fercerpav@gmail.com>
Problem
As my compiler has "warnings being treated as errors" on, it shows the
error message:
error: 'retval' may be used uninitialized in this function
Investigation
Nothing wrong with the logic, 'retval' would have a value before returning.
Just wanna get rid of the compiling "warning as error" message.
Solution
Provide a reasonable default value
Change-Id: I712c15f82819c6c48bee9dceca8de4b18aeb29b0
Signed-off-by: Alamy Liu <alamy.liu@gmail.com>
Reviewed-on: http://openocd.zylin.com/2905
Tested-by: jenkins
Reviewed-by: Robert Jordens <jordens@gmail.com>
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Tomas Vanek
Andreas Loehre
Paul Fertser
Andreas Färber
Jeff Ciesielski
Morgan Quigley
Esben Haabendal
Evan Hunter
Mahavir Jain
Matthias Welwarsky
Thomas Schmid
Jonathan Larmour
Marc Schink
Oleksij Rempel
daniel-k
Maxime Coquelin
Andrew Ruder
Uwe Bonnes
Ivan De Cesaris
Peter A. Bigot
Patrick Stewart
Alex Forencich
Jim Paris
Nemui Trinomius
Ivan Buliev
Philipp Wagner
Austin Morton
Alamy Liu