PI STATUS

Hi , I have done a course on Operating Systems at undergraduate level. I am specifically interested in development of drivers for operating systems which work on hardware such as the Raspberry Pi. Can I get to know what are the potential projects for Raspberry pi in GSoc'17 ? also can you guide me

Re: GSoC 2017

On Fri, Mar 3, 2017 at 5:40 PM, Joel Sherrill wrote: > > > On Mar 3, 2017 9:47 PM, "Gedare Bloom" wrote: > > On Fri, Mar 3, 2017 at 12:57 PM, punit vara wrote: >> Hi >> >> On Fri, Mar 3, 2017 at 9:45 PM, aditya upadhyay >> wrote: >>> Hello all, >>> I am trying to implement pthread_condattr_getc

Issue with 'rtems_shell_wait_for_input' function

Hello all, I made few changes to the fileio test to run NFS using libbsd. The test compiles and when i run it on qemu NFS is initialised. The test starts with the 'rtems_shell_wait_for_input' function which returns RTEMS_UNSATISFIED so the test quits as soon as it begins. I read this means the

Re: GSoC 2017

On Mar 3, 2017 9:47 PM, "Gedare Bloom" wrote: On Fri, Mar 3, 2017 at 12:57 PM, punit vara wrote: > Hi > > On Fri, Mar 3, 2017 at 9:45 PM, aditya upadhyay wrote: >> Hello all, >> I am trying to implement pthread_condattr_getclock() in pthread.h in POSIX >> directory. but i am not able to underst

Re: GSoC 2017

On Fri, Mar 3, 2017 at 12:57 PM, punit vara wrote: > Hi > > On Fri, Mar 3, 2017 at 9:45 PM, aditya upadhyay wrote: >> Hello all, >> I am trying to implement pthread_condattr_getclock() in pthread.h in POSIX >> directory. but i am not able to understand where and which location(files >> and direct

Re: GSoC 2017

Hi On Fri, Mar 3, 2017 at 9:45 PM, aditya upadhyay wrote: > Hello all, > I am trying to implement pthread_condattr_getclock() in pthread.h in POSIX > directory. but i am not able to understand where and which location(files > and directories) these changes would require.As there are 3 pthread.h f

GSoC 2017

Hello all, I am trying to implement pthread_condattr_getclock() in pthread.h in POSIX directory. but i am not able to understand where and which location(files and directories) these changes would require.As there are 3 pthread.h files and i think implementation of this function is done at this loc

[PATCH 22/44] leon, grspw_pkt: fix stscfg cfg TimeCode Int clr

Without this patch time code interrupts was never cleared in the STATUS register. --- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c i

[PATCH 40/44] leon, grspw_pkt: ISR activate shutdown work only if errintr enabled

In shared interrupt systems it might be a problem to handle the interrupt regardless of the interrupt is enabled. Now the same approach to the DMA RX/TX interrupt in the ISR is taken. --- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --

[PATCH 43/44] leon, grtm: ioctl() shouldn't access pointer before validated

This is a fix for a coverity warning --- c/src/lib/libbsp/sparc/shared/tmtc/grtm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/tmtc/grtm.c b/c/src/lib/libbsp/sparc/shared/tmtc/grtm.c index 48b4631..a1038d4 100644 --- a/c/src/lib/libbsp/sparc

[PATCH 14/44] leon, grspw_pkt: fixed error return path in dma_open

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 43 +++ 1 file changed, 31 insertions(+), 12 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 22fcda3..ce4012b 100644 --- a/c/src/lib/libbsp/sp

[PATCH 12/44] leon, grspw_pkt: added link_ctrl options

Improved the link error handling options. Its now possible to disable the link on individual link errors/warnings instead of always on all or none. Changed name of LINKOPTS_IRQ to LINKOPTS_EIRQ to match Linux and VxWorks SpW driver. --- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 25 +

[PATCH 17/44] leon, grspw_pkt: fixed device/dma closing

The user is now responsible to stop and close the DMA channels before closing the device. To prevent complicated situations and blocking the caller of grspw_close and grspw_dma_close a return code was added to indicate to the user that the DMA may not have been stopped or that blocked tasks are sti

[PATCH 19/44] leon, grspw_pkt: allow user controlled DMA intr

The user has already the power to control which DMA buffer will generate interrupt, but no clean way to enable RX/TX interrupts on DMA channel. Without this patch the user had to init DMA config rx/tx_irq_en_cnt to a very large value. --- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 12

[PATCH 44/44] leon, grspw_pkt: fix overwrite protection when more than 32 devs

This is a fix for a coverity warning --- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index e44ca56..a3303c3 100644 --- a/c/src/lib/li

[PATCH 42/44] leon, grspw_pkt: SMP support

The driver already was developed with SMP in mind however SMP was disabled waiting for final fixups and testing. The new function to control the affinity of the ISR was added but does not work for now since the LEON BSP does not reroute IRQs between CPUs during run-time: grspw_isr_affinity() ---

[PATCH 41/44] leon, grspw_pkt: unregister ISR on close

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index d3eca27..ce5b732 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c +++ b/c/src/lib/

[PATCH 39/44] leon, grspw_pkt: fix descriptor table mem leak on grspw_close()

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 6 ++ 1 file changed, 6 insertions(+) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index aa83524..498333e 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c +++ b/c/src/l

[PATCH 36/44] leon, grpsw_pkt: set unique work-task name

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 8 ++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index e445c2a..b64a807 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_p

[PATCH 35/44] leon, grspw_pkt: functions to support custom work-task

Added new function: * grspw_dma_ctrlsts() - Read value of DMA CTRL/STS reg. * grspw_dma_enable_int()- re-enable interrupt, used when implementing a custom work-task. --- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 6 + c/src/lib/

[PATCH 34/44] leon, grspw_pkt: fix interrupt code ctrl bit declarations

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 8f660e7..8853a36 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c +++

[PATCH 37/44] leon, grspw_pkt: ISR RX/TX DMA interrupt source disable configurable

This patch introduces some new options to let the user control when the ISR shall disable DMA RX/TX interrupt. The ISR can be set in three modes when a RX/TX DMA interrupt is asserted: 1) ISR will always clear both RX/TX DMA interrupt enable. (DEFAULT). 2) ISR will never never RX

[PATCH 38/44] leon, grspw_pkt: add missing GRSPW1 IP-core support

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 23 +++ 1 file changed, 23 insertions(+) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 6b5390f..aa83524 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_

[PATCH 31/44] leon, gr740: fix device registration for GRPCI2 core

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c | 26 +++ 1 file changed, 26 insertions(+) diff --git a/c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c b/c/src/lib/libbsp/sparc/shared/drvmgr/ambapp_bus.c index 02aeda0..c48d12d 100644 --- a/c/src/l

[PATCH 32/44] leon, grpci2: latency timer user configurable (default 64)

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/include/grpci2.h | 4 c/src/lib/libbsp/sparc/shared/pci/grpci2.c | 16 2 files changed, 20 insertions(+) diff --git a/c/src/lib/libbsp/sparc/shared/include/grpci2.h b/c/src/lib/libbsp/sparc/shared/include/grpci2.h

[PATCH 21/44] leon, grspw_pkt: split DMA sem into RX and TX sem

By introducing a spearate RX and TX DMA channel semaphore RX operations and TX operations does not block each other. Stopping a DMA channel needs now to take both RX and TX semaphores to block out both RX and TX tasks. --- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 148 ---

[PATCH 33/44] leon, grspw_pkt: added work-task configuration options

Following changes: * possible for user to create work-tasks and assign custom message queues. * possible for user to override default ISR message to implement custom handling of DMA error, DMA RX/TX and link error from ISR. * work-task now checks message to determine which wo

[PATCH 27/44] leon, grpci2: added TIMEOUT interrupt

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/pci/grpci2.c | 8 ++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/pci/grpci2.c b/c/src/lib/libbsp/sparc/shared/pci/grpci2.c index 9d8dea6..cf2f84f 100644 --- a/c/src/lib/libbsp/sparc/shared

[PATCH 29/44] leon, grpci2: updated DMA descriptor layout

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/pci/grpci2.c | 22 +- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/pci/grpci2.c b/c/src/lib/libbsp/sparc/shared/pci/grpci2.c index c5832d5..7fca3cd 100644 --- a/c/src/lib/lib

[PATCH 28/44] leon, grpci2: fixed wrong bit layout

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/pci/grpci2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/pci/grpci2.c b/c/src/lib/libbsp/sparc/shared/pci/grpci2.c index cf2f84f..c5832d5 100644 --- a/c/src/lib/libbsp/sparc/shared/pci

[PATCH 30/44] leon, gr-cpci-leon4-n2x: small comment fix

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/pci/gr_leon4_n2x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/pci/gr_leon4_n2x.c b/c/src/lib/libbsp/sparc/shared/pci/gr_leon4_n2x.c index 9f19838..4a51884 100644 --- a/c/src/lib/libbsp/sp

[PATCH 23/44] leon, grspw_pkt: Added checks for special list cases

- Fixed grspw_dma_tx_send() so that it does not fail when an empty user packet is provided. - Added empty checks on some of the list handling inline functions for GRSPW_PKT. Their use by the driver may be correct already, but the user might not have been aware of the assumptions that certain

[PATCH 24/44] libdrvmgr: added default BSP init level hook

--- cpukit/libdrvmgr/drvmgr.c | 9 + 1 file changed, 9 insertions(+) diff --git a/cpukit/libdrvmgr/drvmgr.c b/cpukit/libdrvmgr/drvmgr.c index 03af390..0771c35 100644 --- a/cpukit/libdrvmgr/drvmgr.c +++ b/cpukit/libdrvmgr/drvmgr.c @@ -66,6 +66,13 @@ static int do_dev_init( /* DRIVER MAN

[PATCH 20/44] leon, grspw_pkt: coding style fix

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 9f9a31a..ddde100 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c +++

[PATCH 18/44] leon, grspw_pkt: support for reading tx/rx DMA queue

* Add support for reading the GRSPW TX/RX descriptor counters directly. * Add semaphore lock to counters to avoid couters being out of sync * This makes it possible for the user in polling mode to check the amount of work before entering RX/TX descriptor table processing. --- c/src/

[PATCH 26/44] bsps/sparc: Updated L2C registers

From: Javier Jalle --- c/src/lib/libbsp/sparc/shared/include/grlib.h | 43 ++- 1 file changed, 22 insertions(+), 21 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/include/grlib.h b/c/src/lib/libbsp/sparc/shared/include/grlib.h index a744899..a2d0877 100644 ---

[PATCH 25/44] libdrvmgr: remove braces

From: Daniel Cederman --- cpukit/libdrvmgr/drvmgr_confdefs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/cpukit/libdrvmgr/drvmgr_confdefs.h b/cpukit/libdrvmgr/drvmgr_confdefs.h index 89d50e7..22c7a90 100644 --- a/cpukit/libdrvmgr/drvmgr_confdefs.h +++ b/cpukit/libdrvmgr/

[PATCH 11/44] leon, grspw_pkt: added grspw_link_status_clr() to API

--- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 2 ++ c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 8 2 files changed, 10 insertions(+) diff --git a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h b/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h index c014b37..f16ec2

[PATCH 16/44] leon, grspw_pkt: coding style fixups

--- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 14 ++ 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h b/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h index 0bc749f..83d5c9c 100644 --- a/c/src/lib/libbsp/sparc

[PATCH 09/44] leon, gptimer: start/reset must take RS and IP into account

--- c/src/lib/libbsp/sparc/shared/timer/gptimer.c | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/timer/gptimer.c b/c/src/lib/libbsp/sparc/shared/timer/gptimer.c index 0553f5d..f8c6da2 100644 --- a/c/src/lib/libbsp/sparc/shared/timer/gptimer

[PATCH 08/44] leon: Fix ambapp_bus OCCAN device registeration order

NOTE that this will change the association of /dev/occanN with OCCAN[N] device to the same order as in hardware. This means that if you have been useing /dev/occan0 before you have to use /dev/occan1 on a dual OCCAN device system (this affects GR712RC). --- c/src/lib/libbsp/sparc/shared/drvmgr/amb

[PATCH 13/44] leon, grspw_pkt: Manual handling of link status events

Added functionality for manual handling of link status events, configurable via grspw_link_ctrl. Added statistics counter for disconnect error. --- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 12 +++- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 17 +++-- 2 file

[PATCH 07/44] leon, grspw_pkt: Preserve DMA address enable at start.

From: Martin Aberg The EN bit (enable separate node address for this channel) is preserved when grspw_dma_start is called. This preserves any previous address configuration. --- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 4 1 file changed, 4 insertions(+) diff --git a/c/src/lib/libbsp

[PATCH 15/44] leon, grspw_pkt: fixed and improved RX/TX wait

--- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 6 +- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 99 +-- 2 files changed, 61 insertions(+), 44 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h b/c/src/lib/libbsp/sparc/shared/include

[PATCH 00/44] LEON improvements, initial batch

First batch of patches for LEON. In short it contains: * older fixes present in RCC-1.2 now rebased to RTEMS master * a fix needed for the driver manager build * various new fixes for PCI on GR740 * New development and functionality to perpare the SpaceWire packet driver for proper SMP suppo

[PATCH 04/44] leon, gr1553b: RT status words register declarations fix

The fix does not affect the driver since the bit definitions were never used by the GR5133B drivers. However it could affect and application using the definitions. --- c/src/lib/libbsp/sparc/shared/include/gr1553b.h | 8 +--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/c/src/

[PATCH 10/44] leon, grspw_pkt: code style clean-ups

--- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 17 + 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 6d2cefb..e23410a 100644 --- a/c/src/lib/libbsp/sparc/shared/s

[PATCH 03/44] leon, gr1553b: comment cleanup

--- c/src/lib/libbsp/sparc/shared/include/gr1553b.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/include/gr1553b.h b/c/src/lib/libbsp/sparc/shared/include/gr1553b.h index 02753f9..11f0980 100644 --- a/c/src/lib/libbsp/sparc/shared/include/g

[PATCH 05/44] leon, grspw_pkt: Fixed parameter check in grspw_dma_open()

From: Martin Aberg --- c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c b/c/src/lib/libbsp/sparc/shared/spw/grspw_pkt.c index 037b63c..96348ae 100644 --- a/c/src/lib/libbsp/sparc/share

[PATCH 06/44] leon, grspw_pkt: Fixed txpkt flag for link error

From: Martin Aberg There was a mixup between the transmit descriptor Link error (LE) bit and Interrupt enable (IE) bit. TXPKT_FLAG_LINKERR now correctly indicates the link error condition. --- c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 10 +- 1 file changed, 5 insertions(+), 5 d

[PATCH 02/44] libpci: code cleanup

--- cpukit/libpci/pci_access.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/cpukit/libpci/pci_access.c b/cpukit/libpci/pci_access.c index 191b06a..11e48c1 100644 --- a/cpukit/libpci/pci_access.c +++ b/cpukit/libpci/pci_access.c @@ -11,9 +11,7 @@ #include /* Access Ro

[PATCH 01/44] leon, grspw: rxPktSize must set DMA RX max length

--- c/src/lib/libbsp/sparc/shared/spw/grspw.c | 6 -- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/c/src/lib/libbsp/sparc/shared/spw/grspw.c b/c/src/lib/libbsp/sparc/shared/spw/grspw.c index fd21303..661ec6c 100644 --- a/c/src/lib/libbsp/sparc/shared/spw/grspw.c +++ b/c/src/l

Re: [PATCH] 4.12: Do not use a global hash file

On Fri, Mar 3, 2017 at 6:23 AM, Sebastian Huber wrote: > --- > rtems/config/hash.cfg | 41 > -- > rtems/config/rtems-base.bset | 2 -- > .../config/tools/rtems-gcc-4.8-newlib-2.2.0-2.cfg | 36 --- > .../rtem

[PATCH] 4.12: Do not use a global hash file

--- rtems/config/hash.cfg | 41 -- rtems/config/rtems-base.bset | 2 -- .../config/tools/rtems-gcc-4.8-newlib-2.2.0-2.cfg | 36 --- .../rtems-gcc-4.8.3-newlib-2.5.0.20170228-1.cfg| 7 ++-- .../config/tool

Re: Undefined reference to `__sync_bool_compare_and_swap_4' for some Leon configurations with gfortran

On 03/03/17 11:13, jan.som...@dlr.de wrote: -Original Message- From: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de] Sent: Wednesday, March 01, 2017 7:47 AM To: Sommer, Jan; devel@rtems.org Subject: Re: Undefined reference to `__sync_bool_compare_and_swap_4' for some Leon co

Re: Undefined reference to `__sync_bool_compare_and_swap_4' for some Leon configurations with gfortran

On Tue, Feb 28, 2017 at 8:27 AM, wrote: > > > > -Ursprüngliche Nachricht- > > Von: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de] > > Gesendet: Montag, 27. Februar 2017 15:25 > > An: Sommer, Jan; devel@rtems.org > > Betreff: Re: AW: AW: AW: Undefined reference to > > `__sync_

RE: Undefined reference to `__sync_bool_compare_and_swap_4' for some Leon configurations with gfortran

> -Original Message- > From: Sebastian Huber [mailto:sebastian.hu...@embedded-brains.de] > Sent: Wednesday, March 01, 2017 7:47 AM > To: Sommer, Jan; devel@rtems.org > Subject: Re: Undefined reference to `__sync_bool_compare_and_swap_4' for > some Leon configurations with gfortran [...] >