Commit Graph

521107 Commits

Author SHA1 Message Date
Dmitry Kalinkin
e7fd80cbb4 vme: check for A64 overflow in vme_check_window()
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:26:57 -07:00
Dmitry Kalinkin
615c40dd9f staging: vme_user: refactor llseek to switch(){}
This makes vme_user_llseek ignore all minors that don't have llseek
implementation.

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:26:57 -07:00
Dmitry Kalinkin
75c66b6db7 vme: stop DMA transfer on interruption
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:26:57 -07:00
Dmitry Kalinkin
b2383c90a9 vme: tsi148: fix first DMA item mapping
This moves DMA mapping of the first list element to vme_list_add, the
same place where other elements mappings occur. This prevents extra
mapping or over-unmapping in the cases when vme_list_exec is called more
or less than one time respectively.

Also adds dma_mapping_error check.

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:26:57 -07:00
Dmitry Kalinkin
f656eaee63 vme: tsi148: fix DMA lists longer that one item
DMA lists on tsi148 weren't processed further than the first item
because of the broken logic. This regression was introduced in:

ac1a4f2caf "Staging: VME: Ensure TSI148 link list descriptors..."

Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:26:56 -07:00
Dmitry Kalinkin
c5ab1f7faa Documentation: mention vme_master_mmap() in VME API
Signed-off-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>
Cc: Igor Alekseev <igor.alekseev@itep.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:26:56 -07:00
Sudip Mukherjee
4e18248a66 staging: rtl8188eu: remove function which does nothing
The function rtw_mfree_all_stainfo() is just holding the lock,
traversing the list, and then unlocking. It is not doing anything else.
So removed the function and modified the places from where it was called.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:23:11 -07:00
Sudip Mukherjee
9393d34e49 staging: rtl8188eu: remove unused variables
These variables were being set but not used afterwards.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:23:11 -07:00
Sudip Mukherjee
71d62adb67 staging: rtl8188eu: remove unused enum and CONFIG
The CONFIGs, the enum and the function declaration was not being
used anywhere.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:23:11 -07:00
Luca Ceresoli
ebd21582bd staging: rtl8188eu: fix wrong debug print
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:06 -07:00
Luca Ceresoli
a26c9eedcd staging: rtl8188eu: issue_probersp(): remove unused variable and dead code
is_valid_p2p_probereq is initialized to false and never modified. Code
depending on it is dead code. Remove all of it.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:06 -07:00
Luca Ceresoli
863eaa79ba staging: rtl8723au: issue_probersp(): remove unused parameter
The is_valid_p2p_probereq is never referenced in the function body.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:06 -07:00
Luca Ceresoli
935142236d staging: rtl8188eu: issue_probersp(): remove unused parameter
The is_valid_p2p_probereq is never referenced in the function body.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:05 -07:00
Luca Ceresoli
782eddd748 staging: rtl8188eu: unexport internal functions
These are internal functions. Remove their declaration in rtw_mlme_ext.h
and make them static.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:05 -07:00
Luca Ceresoli
68345dd7bc staging: rtl8188eu: rtw_mlme_ext.c: unexport message callbacks
These are internal functions. Remove their declaration in rtw_mlme_ext.h
and make them static.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:05 -07:00
Luca Ceresoli
4e10234453 staging: rtl8188eu: rtw_mlme_ext.c: reorder message callbacks and tables
The message handling stored in mlme_sta_tbl and OnAction_tbl are internal and
will be declared static, and their declaration removed from rtw_mlme_ext.h, in
a later commit.

This would break compilation, since they are are referenced before their
definition.

Reorder these functions and the structures that hold them so that symbols are
defined before they are referenced, without the need for forward declarations.

This commit only reorders code, there is no content change.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:22:05 -07:00
Juston Li
5ee35ea775 staging: sm750fb: fix c99 comments
fixed all checkpatch.pl ERROR: do not use C99 // comments

Any C99 comments used to comment out code are simply removed.
Also some of the errors occur inside '#if 0' blocks which I
might as well fix since checkpatch.pl caught them but the blocks
themselves should probably be cleaned up later.

Changes since v1: close a comment block

Signed-off-by: Juston Li <juston.h.li@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:20:33 -07:00
Harisangam Sharvari
c40753b5c7 staging: rtl8192u: Removed redundant bool comparisons in r8192U_dm.c
This patch was detected with the help of coccinelle tool.
The redundant comparisons of bool variables are removed in r8192U_dm.c.

Signed-off-by: Harisangam Sharvari <sharisan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:19:47 -07:00
Gaston Gonzalez
25e2704c46 staging: rtl8192u: ieee80211: Fix sparse endianness warnings ieee80211_softmac.c
Fix the following endinness warnings detected by sparse:

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:669:34: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:669:34:    expected restricted __le16 [usertype] duration_id
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:669:34:    got int

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:679:33: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:679:33:    expected restricted __le16 [usertype] algorithm
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:679:33:    got int

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1090:32: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1090:32:    expected restricted __le16 [usertype] duration_id
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1090:32:    got int

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1109:30: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1109:30:    expected restricted __le16 [usertype] listen_interval
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:1109:30:    got int

drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:3130:24: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:3130:24:    expected restricted __le16 [usertype] reason
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:3130:24:    got unsigned char [unsigned] [usertype] asRsn

Signed-off-by: Gaston Gonzalez <gascoar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:19:47 -07:00
Fabian Frederick
590aeb174a staging: speakup: use swap() in get_highlight_color()
Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:19:47 -07:00
Fabian Frederick
2ccd94e412 staging: rtl8723au: use swap() in WMMOnAssocRsp23a()
Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:19:47 -07:00
Fabian Frederick
8781d5b349 staging: rtl8712: use swap() in dequeue_xframe_ex()
Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:19:47 -07:00
Fabian Frederick
8a889aee58 Staging: rtl8188eu: use swap() in WMMOnAssocRsp()
Use kernel.h macro definition.

Thanks to Julia Lawall for Coccinelle scripting support.

Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:13:27 -07:00
Mateusz Kulikowski
32215eaa6e staging: rtl8192e: Remove dead code: dig_t::dbg_mode, drx_path_sel::DbgMode
dig_t::dbg_mode and drx_path_sel::DbgMode are initialized to one value and
checked only once in code.This patch throws them away, and deletes
always-true conditions.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:13:27 -07:00
Mateusz Kulikowski
67ba748c03 staging: rtl8192e: remove dm_shadow
dm_shadow array is no longer used.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:13:27 -07:00
Gnanachandran Dhanapal
fa70ae09e6 Staging: rtl8192e: Casting correct Endianness
Casting correct Endianness for __le16 variable used in assignment and
condition check

Signed-off-by: Gnanachandran Dhanapal <gdhanapa@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:12:16 -07:00
Nizam Haider
98f196afef Staging: rts5208: xd: Fixed checkpatch warning
Fixed a warning, else is not generally useful after a break or return.

Signed-off-by: Nizam Haider <nizamhaider786@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:12:16 -07:00
Harisangam Sharvari
441b3e45c2 Staging: vt6655: Remove unnecessary equality checks in rxtx.c
The unnecessary equality checks for bool variable are removed in rxtx.c.
These changes were detected with the help of coccinelle tool

Signed-off-by: Harisangam Sharvari <sharisan@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:10:47 -07:00
David Kershner
86ea8acc6b staging: unisys: Don't hold device responses until driver loads
Currently if a driver is not loaded for a device, we will not
respond to the device create until it is done. This causes
s-Par to not mark the partition running if the driver for the
device is not loaded. Since there are several devices that
could be assigned to a guest that don't have an actual
driver this will cause us to never go running.

If the device driver is loaded, we WILL continue to only
respond to the device PAUSE message when the device driver
has responded that it is done with the device.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:08:07 -07:00
David Kershner
5e54654c41 staging: unisys: convert pack pragma to __packed
It was noticed that iochannel.h was still using pragmas to
pack the datastructures, should be using __packed instead.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:08:07 -07:00
David Kershner
c20a99f8c3 staging: unisys: Move phys_info to iochannel.h
This moves phys_info to iochannel.h. It is only
used by iochannel.h and is not needed in
vmcallinterfaces.h.

Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:08:07 -07:00
Abdul Hussain
df7f46e83c staging: unisys: Remove unneeded variable
This patch remove unneeded variable used to store return value.

Signed-off-by: Abdul Hussain <habdul@visteon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:08:07 -07:00
Ian Abbott
57334a30c8 staging: comedi: das08: use better MODULE_DESCRIPTION()
Replace the boiler-plate Comedi module description string with something
more specific.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:42 -07:00
Ian Abbott
34cce4628b staging: comedi: das08: clarify sign-magnitude conversion
For DAS08/JR/16 and DAS08/JR/AO-16 boards, the 16-bit analog input
readings are assumed to be in a sign-magnitude format and need
converting to the COMEDI unsigned sample format.  The expressions to do
the conversion look a little messy.  Use a local variable `magnitude` to
make it easier to follow.

Also, there seems to be some discrepancy between the manual for these
boards and the COMEDI code.  The manual implies that 0 is full-scale
negative and 65535 is full-scale positive.  However, the COMEDI code has
used the sign-magnitude conversion for these boards since these two
boards were initially supported by a patch from an external contributor
to the COMEDI project back in 2001.  Assume the code is correct for now,
but add a comment to mention the discrepancy.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:42 -07:00
Ian Abbott
3919c3d589 staging: comedi: das08: rename das08_do_wbits() & das08jr_do_wbits()
`das08_do_wbits()` and `das08jr_do_wbits()` are handlers for the Comedi
`INSN_BITS` instruction for the digital output subdevice on "non-JR" and
"JR" boards, respectively.  Rename them to `das08_do_insn_bits()` and
`das08jr_do_insn_bits()` respectively for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
9f05914d0c staging: comedi: das08: rename das08_di_rbits() & das08jr_di_rbits()
`das08_di_rbits()` and `das08jr_di_rbits()` are handlers for the Comedi
`INSN_BITS` instruction for the digital input subdevice on "non-JR" and
"JR" boards, respectively.  Rename them to `das08_di_insn_bits()` and
`das08jr_di_insn_bits()` respectively for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
c224a91957 staging: comedi: das08: rename das08_ai_rinsn()
`das08_ai_rinsn()` is the handler for Comedi `INSN_READ` instructions
for the AI subdevice.  Rename the function to `das08_ai_insn_read()` for
consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
fcd63ec8f3 staging: comedi: das08: rename the gainlist variables
`das08_pgh_gainlist[]`, `das08_pgl_gainlist[]`, and
`das08_pgm_gainlist[]` hold the gain codes indexed by range index for
various boards that support programmable gain. `das08_gainlist[]` is a
look-up table to find the appropriate gain list for a board.  These are
all associated with the analog input Comedi subdevice.  Rename the
variables to reflect that.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
a76ccfa81e staging: comedi: das08: rename ai range tables
The `range_das08_pgl`, `range_das08_pgm`, and `range_das08_pgh`
variables define the analog input ranges for the "PGL", "PGM", and "PGH"
board variants, and are also used for the "AOL", "AOM", and "AOH" board
variants.  Rename them to use the `das08_` prefix for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
194869dbe8 staging: comedi: das08.c: reformat remaining comments
Use the preferred style for block comments.  Squash double spaces after
the comment opening sequence for single-line comments.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
66774ce6ca staging: comedi: das08.c: reformat copyright comment
Replace double spaces with single spaces at the start of each line in
the copyright comment at the top of the file.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
646e70c5d1 staging: comedi: das08: remove board register map comments
The "das08" module contains some comments outlining the register maps
for some of the ISA boards supported by this module in combination with
the "das08_isa" module.  The comments are somewhat sporadically placed,
don't detail all the boards, and don't use the preferred block comment
style.  If anywhere, they should probably be in the "das08_isa" module.
Just remove them.  The comments for the register macros indicate which
boards they apply to anyway, so we don't lose much information.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
6814b4a3fd staging: comedi: das08: rename DAS08AO_AO_UPDATE
"AOL", "AOM", and "AOH" boards have a jumper that controls whether
analog output channels are updated simultaneously or individually.  When
set to update individually, individual channels are updated when the
high byte register is written.  When set to update simultaneously,
channels are not updated until any of the analog output registers are
read.  The driver doesn't know the jumper setting and is not interested
in the simultaneous update feature, so it updates a channel by writing
the low byte register, the high byte register, and then reading channel
0's low byte register.

The `DAS08AO_AO_UPDATE` macro contains the offset to the low byte
register for analog output channel 0 on the "AOL", "AOM", and "AOH"
boards, which the driver reads to update the analog outputs.  Rename the
macro to `DAS08AOX_AO_UPDATE_REG` and add a comment.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
3c98c1d3f1 staging: comedi: das08: rename DAS08AO_AO_LSB() and DAS08AO_AO_MSB()
The `DAS08AO_AO_LSB(x)` macro returns the offset to the analog output
low byte register for channel x (0 or 1) for "AOL", "AOM", and "AOH"
boards.  The `DAS08AO_AO_MSB(x)` macro returns the offset to the
corresponding high byte register.  Rename the macros to
`DAS08AOX_AO_LSB_REG(x)` and `DAS08AOX_AO_MSB_REG(x)` respectively, and
add some comments.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
f1c04fd421 staging: comedi: das08: replace DAS08AO_GAIN_CONTROL/STATUS
The `DAS08AO_GAIN_CONTROL` and `DAS08AO_GAIN_STATUS` macros hold the
offset to the "programmable gain" register on "PGL", "PGM", "PGH",
"AOL", "AOM" and "AOH" boards.  Writing a code to this register sets the
gain for the current analog input channel (selected in the main control
register).  The written value can be read back in bits 3..0 of the
register.  Other bits of the register are read-only and not used by the
driver.  Rename `DAS08AO_GAIN_CONTROL` to `DAS08_GAIN_REG` and add a
comment.  Remove `DAS08AO_GAIN_STATUS` as the driver does not use it and
the read-only parts of the register are documented in the comment.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:41 -07:00
Ian Abbott
09ed1b72cf staging: comedi: das08: add DAS08JR_AO_UPDATE_REG
"JR" boards with analog output channels have a jumper that controls
whether analog output channels are updated simultaneously or
individually.  When set to update individually, individual channels are
updated when the high byte register is written. When set to update
simultaneously, channels are not updated until the digital inputs
register is read.  The driver doesn't know how the jumper is set and is
not interested in the simultaneous output feature, so it updates a
channel by writing the low byte, then the high byte, then reading the
digital inputs register.  To make the code more explicit, add a macro
`DAS08JR_AO_UPDATE_REG` with the same value as the `DAS08JR_DI_REG`
macro (for digital inputs) and use it when reading the register to
update the analog outputs.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:40 -07:00
Ian Abbott
7b2098f626 staging: comedi: das08: rename DAS08JR_AO_LSB() and DAS08JR_AO_MSB()
The `DAS08JR_AO_LSB(x)` macro returns the offset to the analog output
low byte register for channel x (0 or 1) for "JR" boards with analog
output support.  The `DAS08JR_AO_MSB(x)` macro returns the offset to the
corresponding high byte register.  Rename the macros to
`DAS08JR_AO_LSB_REG(x)` and `DAS08JR_AO_MSB_REG(x)` respectively, and
add some comments.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:40 -07:00
Ian Abbott
c47c0ed2d5 staging: comedi: das08: rename and split DAS08JR_DIO
The `DAS08JR_DIO` macro contains the offset to the read-only digital
input register and write-only digital output register on the "JR"
boards.  Replace the macro with two new macros (with the same numeric
value) named `DAS08JR_DI_REG` for the digital input register and
`DAS08JR_DO_REG` for the digital output register, and add some comments.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:40 -07:00
Ian Abbott
11e8457f02 staging: comedi: das08: rename DAS08_OP() and DAS08_DO_MASK
The `DAS08_DO_MASK` macro is a bitmask for the control register
corresponding to the digital output channels (except on "JR" boards).
Rename it to `DAS08_CONTROL_DO_MASK` and add a comment.

The `DAS08_OP(x)` macro takes a bitvector of the desired digital output
channel states and returns the corresponding bits for the control
register (except on "JR" boards).  Rename it to `DAS08_CONTROL_DO(x)`
and add a comment.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:40 -07:00
Ian Abbott
6a3a22bcad staging: comedi: das08: rename and rewrite DAS08_INTE
The `DAS08_INTE` macro contains a mask for the "INTE" bit in the control
register (except on "JR" boards).  Setting it to 1 enables interrupts.
Setting it to 0 disables interrupts and clears the "IRQ" bit in the
status register.  Rename the macro to `DAS08_CONTROL_INTE` and add a
comment.  Also use the `BIT()` macro to define its value.  (Note: the
driver does not currently enable interrupts.)

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-12 17:06:40 -07:00