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Commit Graph

783215 Commits

Author SHA1 Message Date
Todd Poynor
02d3718633 staging: gasket: page table: remove dead code in coherent mem alloc
gasket_alloc_coherent_memory() has some unnecessary code related to out
of memory checking that will never hit the condition checked, remove.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-15 16:30:37 +02:00
Todd Poynor
b1004491c9 staging: gasket: page table: return valid error code on map fail
Return -EINVAL on mapping failures, instead of -1, which triggers a
checkpatch error.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-15 16:30:37 +02:00
Michael Straube
7fa3069dfc staging: rtl8188eu: remove whitespace - style
Remove extra space in variable declaration.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:16 +02:00
Michael Straube
18e1aec859 staging: rtl8188eu: rename Hal_MappingOutPipe() - style
Rename Hal_MappingOutPipe() to avoid CamelCase.
Hal_MappingOutPipe -> hal_mapping_out_pipe

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:16 +02:00
Michael Straube
30d046f2a7 staging: rtl8188eu: rename parameters of Hal_MappingOutPipe() - style
Rename parameters of Hal_MappingOutPipe() in header to avoid CamelCase
and match the names used in the function definition in hal_com.c.
pAdapter -> adapter
NumOutPipe -> numoutpipe

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:16 +02:00
Michael Straube
b96ec4e874 staging: rtl8188eu: rename parameter of hal_com_get_channel_plan() - style
Rename parameter of hal_com_get_channel_plan() in header to avoid
CamelCase and match the name used in the function definition in
hal_com.c. AutoLoadFail -> load_fail

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:16 +02:00
Michael Straube
b4a6b11cd2 staging: rtl8188eu: remove unused parameter of hal_com_get_channel_plan()
The parameter 'struct adapter *padapter' of hal_com_get_channel_plan()
is unused, so remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:16 +02:00
Michael Straube
aa906bb630 staging: rtl8188eu: rename HalSetBrateCfg() - style
Rename HalSetBrateCfg() to avoid CamelCase.
HalSetBrateCfg -> hal_set_brate_cfg

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:16 +02:00
Michael Straube
a7ce32d143 staging: rtl8188eu: rename parameters of HalSetBrateCfg() - style
Rename parameters of HalSetBrateCfg() in header to avoid CamelCase
and match the names used in the function definition in hal_com.c.
mBratesOS -> brates
BrateCfg -> rate_cfg

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:15 +02:00
Michael Straube
6d475d38e6 staging: rtl8188eu: remove unused parameter of HalSetBrateCfg()
The parameter 'struct adapter *adapt' of HalSetBrateCfg() is unused,
so remove it.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:33:15 +02:00
Michael Straube
8525589130 staging: rtl8188eu: remove whitespace in qos_acm()
Remove whitespace in qos_acm() to improve readability.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:39 +02:00
Michael Straube
e0437819db staging: rtl8188eu: cleanup long lines in stop_sta_xmit()
Line break lines over 80 characters in stop_sta_xmit() to
clear checkpatch warnings.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:39 +02:00
Michael Straube
d7c252002b staging: rtl8188eu: cleanup long lines in rtw_get_sta_pending()
Line break lines over 80 characters in rtw_get_sta_pending() to
clear checkpatch warnings.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:39 +02:00
Michael Straube
909495c8db staging: rtl8188eu: cleanup block comments
Cleanup block comments to clear 'please, no space before tabs'
and 'line over 80 characters' checkpatch warnings.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:39 +02:00
Michael Straube
1330c795c5 staging: rtl8188eu: remove commented code
Remove unused commented code in the file core/rte_xmit.c.
Clears 'please, no space before tabs' and 'line over 80
characters' checkpatch warnings.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:39 +02:00
Michael Straube
f996f37471 staging: rtl8188eu: cleanup alignment issue
Clear a 'Alignment should match open parenthesis'
checkpatch issue.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:38 +02:00
Michael Straube
cac04b1fc6 staging: rtl8188eu: use __func__ in qos_acm()
Use __func__ instead of hardcoded name in qos_acm().
Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:38 +02:00
Michael Straube
a66ecb24f2 staging: rtl8188eu: cleanup missing spaces around operators
Clear all missing spaces around operators checkpatch issues
in the file core/rtw_xmit.c. Use '+=' or '-=' where possible.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:32:38 +02:00
Colin Ian King
fde54ecea2 staging: rtl8188eu: fix spelling mistake "EINPROGESS" -> "EINPROGRESS"
Trivial fix to spelling mistake in RT_TRACE message text.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:31:53 +02:00
Colin Ian King
9e269dcdec staging: rtlwifi: phydm: fix spelling mistake "Abnrormal" -> "Abnormal"
Trivial fix to spelling mistake in message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:31:53 +02:00
Colin Ian King
2a5b8d97c6 staging: rtl8188eu: fix spelling mistake "Abnornally" -> "Abnormally"
Trivial fix to spelling mistake in ODM_RT_TRACE trace message

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:31:53 +02:00
Gustavo A. R. Silva
a7ed5b3e7d staging: comedi: tio: fix multiple missing break in switch bugs
Currently, there are multiple missing break statements in two switch code
blocks. This makes the execution path to fall all the way down through
to the default cases, which makes the function ni_tio_set_gate_src() to
always return -EINVAL.

Fix this by adding the missing break statements.

Also, notice that due to the absence of the break statements,
the following pieces of code are unreachable:

1078    if (ret)
1079            return ret;
1080    /* 3.  reenable & set mode to starts things back up */
1081    ni_tio_set_gate_mode(counter, src);

1098    if (ret)
1099            return ret;
1100    /* 3.  reenable & set mode to starts things back up */
1101    ni_tio_set_gate2_mode(counter, src);

So, by adding the missing breaks, this patch also fixes the problem
above.

Addresses-Coverity-ID: 1474165 ("Missing break in switch")
Addresses-Coverity-ID: 1474162 ("Structurally dead code")
Fixes: 347e244884 ("staging: comedi: tio: implement global tio/ctr routing")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:31:53 +02:00
Nishad Kamdar
370a1b573d staging: mt7621-mmc: Use BIT macro instead of explicit shifting in dbg.h
Replace explicit shifting with BIT macro in dbg.h.
Issue found by checkpatch.

Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:30:34 +02:00
Nishad Kamdar
23f5fb5d87 staging: mt7621-mmc: Fix lines over 80 characters in dbg.h
This patch fixes lines over 80 characters in dbg.h.
Issue found by checkpatch.

Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:30:33 +02:00
Nishad Kamdar
01378deb37 staging: mt7621-mmc: Fix lines over 80 characters in dbg.c
This patch fixes lines over 80 characters in dbg.c.
Issue found by checkpatch.

Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:30:33 +02:00
Mamta Shukla
d840eb63ba staging: rtl8723bs: os_dep: Shift * to be adjacent to pointer name
Shift * to be adjacent to pointer name to follow Linux coding style.
Issue found with checkpatch.pl
ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: Mamta Shukla <mamtashukla555@gmail.com>
Acked-by:Larry Finger<Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:29:34 +02:00
Colin Ian King
90b217a74b staging: rtl8723bs: fix spelling mistake "Abnrormal" -> "Abnormal"
Trivial fix to spelling mistake in message text

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-14 13:29:34 +02:00
Mamta Shukla
54da60beab staging: rtl8723bs: os_dep: Remove space after cast
Remove space after cast to fix checkpatch issue.
CHECK: No space is necessary after a cast

Signed-off-by: Mamta Shukla <mamtashukla555@gmail.com>
ACKed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-11 20:20:06 +02:00
Mamta Shukla
e2b13595ae staging: rtl8723bs: os_dep: Remove true and false comparison
Remove comparison to true and false in if statement.
Issue found with checkpatch.pl
CHECK: Using comparison to true is error prone
CHECK: Using comparison to false is error prone

Signed-off-by: Mamta Shukla <mamtashukla555@gmail.com>
ACKed-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-11 20:20:06 +02:00
Rasmus Villemoes
b4fc4e8340 staging: greybus: loopback.c: remove unused gb_loopback::lbid
It's not obvious how the code prevents adding more than 31 elements to
the list and thus invoking undefined behaviour in the 1 << new_lbid
expression, and in practice causing ->lbid values to repeat every 32
elements.

But the definition of struct gb_loopback is local to loopback.c, and the
lbid field is entirely unused outside of this function, so it seems we
can just drop it entirely.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Bryan O'Donoghue <pure.logic@nexus-software.ie>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-11 12:10:32 +02:00
Ioannis Valasakis
aa5a54a06b staging: wilc1000: prefer 'help' in KConfig
Fix for a style warning using the help without the
deprecated help included between dashes.
Reported by checkpatch.

Signed-off-by: Ioannis Valasakis <code@wizofe.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-11 12:10:32 +02:00
Craig Kewley
84ac86fbbe staging: vboxvideo: make a couple of funcs static
Fix Sparse warnings:
drivers/staging/vboxvideo/vbox_mode.c:309:6: warning:
symbol 'vbox_primary_atomic_disable' was not declared. Should it be static?

drivers/staging/vboxvideo/vbox_mode.c:452:6: warning:
symbol 'vbox_cursor_atomic_disable' was not declared. Should it be static?

Signed-off-by: Craig Kewley <craigkewley@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-11 12:10:32 +02:00
Dan Carpenter
c00e1d09e3 staging: vboxvideo: unlock on error in vbox_cursor_atomic_update()
We need to unlock before returning on this error path.

Fixes: 35f3288c45 ("staging: vboxvideo: Atomic phase 1: convert cursor to universal plane")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-11 12:10:32 +02:00
Bhanusree Pola
a2d6e3e60a staging: mt7621-dma: Delete unused define
delete unused '#define GDMA_REG_CTRL1_CONTINOUS BIT(14)'

Signed-off-by: Bhanusree Pola <bhanusreemahesh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 13:15:23 +02:00
Gao Xiang
2abd781413 staging: erofs: harden inode lookup for 32-bit platforms
This patch introduces inode hash function, test and set callbacks,
and iget5_locked to find the right inode for 32-bit platforms.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 13:15:23 +02:00
Michael Straube
10844575cc staging: rtl8188eu: remove whitespace - style
Replace tabs with spaces and/or remove extra spaces where
appropriate.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 13:15:23 +02:00
Michael Straube
f8f4e529f3 staging: rtl8188eu: cleanup lines over 80 characters - style
Clear 'line over 80 characters' checkpatch warnings by adding
appropriate line breaks and moving a comment.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 13:15:22 +02:00
Michael Straube
847a648e15 staging: rtl8188eu: add spaces around operators - style
Add spaces around '*' and '/' to follow kernel coding style.
Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 13:15:22 +02:00
Michael Straube
f4256fc7f2 staging: rtl8188eu: use __func__ instead of hardcoded name - style
Use __func__ instead of hardcoded function name in rtw_xmit_entry().
Reported by checkpatch.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-10 13:15:22 +02:00
Gao Xiang
0a0b7e6252 staging: erofs: add the missing __init tags
Append __init to `erofs_init_inode_cache',
`z_erofs_init_zip_subsystem' and move these
declarations to internal.h.

Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:38:47 +02:00
Spencer E. Olson
fa86c00799 staging: comedi: ni_660x: add device-global routing
Provides the device-global routing interface for ni_660x devices.  Using
the device-global names in comedi_cmd structures for commands was already
supported through the ni_tio module.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:05 +02:00
Spencer E. Olson
a0c5e84600 staging: comedi: ni_660x: clean up pfi routing
Cleans up the pfi routing code to make it easier to follow, read, and also
to prepare to use this cleaned up code for enabling the device-global
routing interface for ni_660x devices.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:05 +02:00
Spencer E. Olson
51c4ba6407 staging: comedi: ni_660x: Add NI PCI-6608 to list of supported devices
Previously, only the PXI version of the NI-6608 board was supported.  This
change adds support for the PCI version as well.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:05 +02:00
Spencer E. Olson
713ebc5939 staging: comedi: ni_mio_common: create device-global access to tio
Adds tio sub-devices of ni_mio_common supported hardware to the
implementation of test_route, connect_route, disconnect_route.  This change
delegates the actual functionality to the ni_tio module.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:05 +02:00
Spencer E. Olson
347e244884 staging: comedi: tio: implement global tio/ctr routing
Adds ability to use device-global names in command args, in particular
cmd->start_arg (for NI_CtrArmStartTrigger), and cmd->scan_begin_arg or
cmd->convert_arg (either is used to specify NI_CtrGate, with preference
given to cmd->scan_begin_arg, if it is set).

The actual arguments of cmd->start_arg are not fully checked against known
register values for the particular devices because these are not documented
or currently known.  This follows the precedence of prior versions of the
tio driver.  Should these become known, they should be annotated in the
route_values tables and the set of lines in ni_tio_cmdtest should be
uncommented to allow the tests to be made.

This patch also adds interface functions that allow routes for particular
counter route destinations to be made/queried/unmade.  This allows overseer
modules to implement test_route, connect_route, and disconnect_route.  As a
part of these changes, various functions were cleaned up and clarified.

These new interface functions allow direct writing/reading of register
values.  This is an example of exactly what the new device-global access
was intended to solve:  the old interface was not consistent with other
portions of the ni_* drivers--it did not allow full register values to be
given for various MUXes.  Instead, the old interface _did_ abstract away
some of the actual hardware from the underlying devices, but it was not
consistent with any other NI hardware.  Allowing the device-global
identifiers to be used, the new patch provides for consistency across all
ni_* drivers.  One final note:  these changes provide for backwards
compatibility by allowing the older values to still be used in through the
pre-existing kernel interfaces--though not in the new device-global
test/dis/connect/route interfaces.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:05 +02:00
Spencer E. Olson
02d1c6e827 staging: comedi: ni_mio_common: implement output selection of GPFO_{0, 1}
Implement the ability to route various signals to NI_CtrOut(x) pin.  This
pin is also known as GPFO_{0,1} in the DAQ STC.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:04 +02:00
Spencer E. Olson
d4961bb3d9 staging: comedi: ni_mio_common: implement global pfi, rtsi routing
Implement device-global config interface for ni_mio devices.  In
particular, this patch implements:
INSN_DEVICE_CONFIG_TEST_ROUTE,
INSN_DEVICE_CONFIG_CONNECT_ROUTE,
INSN_DEVICE_CONFIG_DISCONNECT_ROUTE,
INSN_DEVICE_CONFIG_GET_ROUTES
for the ni mio devices.  This means that the new abstracted signal/terminal
names can be used to define signal routing with regards to the PFI
terminals and RTSI trigger bus lines.

This also adds ability to identify PFI and RTSI channels on the PFI and
RTSI subdevices using the new device-global names.  This does not change
the values that are set for channel output selections using the subdevice
interfaces--these still require direct register values.

Annotates and updates tables of register values to reflect this new
implementation status.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:04 +02:00
Spencer E. Olson
56d0b826d3 staging: comedi: ni_mio_common: implement new routing for TRIG_EXT
Use new signal routing capability for all comedi command *_src == TRIG_EXT
options.  This new interface allows the user specify signals and terminals
as TRIG_EXT sources using a very consistent naming convention. Furthermore,
the interface allows backwards compatibility to prior behavior of
specifying register-level (or near register-level) values as *_arg options
when *_src == TRIG_EXT.

Annotates and updates tables of register values to reflect this new
implementation status.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:04 +02:00
Spencer E. Olson
4bb90c87ab staging: comedi: add interface to ni routing table information
Adds interface and associated unittests for accessing/looking-up/validating
the new ni routing table information.

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:36:04 +02:00
Spencer E. Olson
ba932fcfee staging: comedi: ni_routing: Add NI signal routing info
See README for a thorough discussion of this content.

Adds tables of all register values for routing various signals to various
terminals on National Instruments hardware.  This information is directly
compared to and taken from register-level programming documentation and/or
register-level programming examples as provided by National Instruments.

Furthermore, this information was mostly compared (favorably) to the
register values already used in the comedi drivers for NI hardware.

Adds tables of valid routes for many devices.  This information is not
consistent from device to device, nor entirely consistent within device
families.  One additional major challenge is that this information does not
seem to be obtainable in any programmatic fashion, neither through the
proprietary NIDAQmx(-base) c-libraries, nor with register level
programming, _nor_ through any documentation.  In fact, the only consistent
source of this information is through the proprietary NI-MAX software,
which currently only runs on Windows platforms.  A further challenge is
that this information cannot be exported from NI-MAX, except by screenshot.

The collection and maintenance of this information is somewhat tedious and
requires frequent re-examination and comparison of NI-MAX and/or the
NI-MHDDK documentation (register programming information) and NI-MHDDK
examples.  Tools are added with this patch to facilitate generating CSV
files from the data tables.  These CSV files can be used with a spreadsheet
program to provide better visual comparision with screenshots gathered from
NI-MAX.  Tools are also added to regenerate the data tables from CSV
content--this greatly enhances updating data tables with large changes
(such as when adding devices).

Signed-off-by: Spencer E. Olson <olsonse@umich.edu>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-10-09 15:34:51 +02:00