3937 Commits

Author SHA1 Message Date
H Hartley Sweeten
79518d9f9c staging: comedi: addi_apci_3xxx: remove 'i_AiChannelList' from the boardinfo
The analog input s->len_chanlist for the boards supported by this driver
should always be the number of channels (s->n_chan). Use that instead
and remove the 'i_AiChannelList' from the boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:54 -07:00
H Hartley Sweeten
283ce66926 staging: comedi: addi_apci_3xxx: remove 'tsk_Current' from private data
The interrupt function should be using comedi_event() to let the user
know data is available from the analog input subdevice.

The analog input subdevice is currently broken and nothing sets
tsk_Current anyway so just remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:54 -07:00
H Hartley Sweeten
f43abbb4ff staging: comedi: addi_apci_3xxx: rename 'dw_AiBase' in private data
This variable holds the ioremap'ed PCI bar 3 used to read/write the
analog input and output registers. Rename it to simply 'mmio'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:54 -07:00
H Hartley Sweeten
dc63364691 staging: comedi: addi_apci_3xxx: remove 'iobase' from private data
The private data 'iobase' is the same as the comedi_device 'iobase'.
Use the one in the comedi_device instead.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:44 -07:00
H Hartley Sweeten
9cfd70de79 staging: comedi: addi_apci_3xxx: remove 'i_IobaseReserved' from private data
This variable is not used by the driver. Remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:43 -07:00
H Hartley Sweeten
088e2e053d staging: comedi: addi_apci_3xxx: tidy up i_APCI3XXX_InsnReadAnalogInput()
The analog input subdevice in this driver is broken. It abuses the
comedi API and will not work as-is. Start cleaning it up so it can
be fixed.

Rename the CamelCase function and the local variables.

Refactor the function to remove the indents. Most of the indents are
left over from the previous patches.

Invert the early tests to provide a quick exit from the function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:43 -07:00
H Hartley Sweeten
f4e694d54e staging: comedi: addi_apci_3xxx: remove sanity checks in i_APCI3XXX_InsnReadAnalogInput()
The comedi core validates the insn->chanspec channel and range before
calling the subdevice (*insn_read) function.

Remove the unnecessary sanity checks.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:43 -07:00
H Hartley Sweeten
08be3097fa staging: comedi: addi_apci_3xxx: remove 'b_AiInitialisation' from private data
This variable is set during the attach of the board and never cleared
so the test in i_APCI3XXX_InsnReadAnalogInput() will always succeed.
Just remove the variable to help with cleaning up this driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:42 -07:00
H Hartley Sweeten
61048cf4b9 staging: comedi: addi_apci_3xxx: remove unused define
This define is not used by the driver. Remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:42 -07:00
H Hartley Sweeten
da6578abd7 staging: comedi: addi_apci_3xxx: refactor the ttl digital i/o support
Currently, the subdevice functions used to configure and read/write the
ttl digital i/o ports is way over to complicated. The (*insn_config)
function also abuses the comedi API by overriding the instruction
command passed in data[0].

Fix the ttl digital i/o support to work like the comedi core expects.

The (*insn_config) function supports the three instructions common for
COMEDI_SUBD_DIO subdevices:

    INSN_CONFIG_DIO_INPUT - configure the specified channel as input
    INSN_CONFIG_DIO_OUTPUT - configure the specified channel as output
    INSN_CONFIG_DIO_QUERY - returns the status of the specified channel

    Port 0 (channels 0-7) is always input
    Port 1 (channels 8-15) is always output
    Port 2 (channels 9-23) are programmable i/o (all channels are input or output)

The (*insn_bits) function allows writing to the output channels and returns
the state of all channels.

The (*insn_read) and (*insn_write) functions are not required. The comedi
core will emulate them using the (*insn_bits) function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:42 -07:00
H Hartley Sweeten
0e771e49fc staging: comedi: addi_apci_3xxx: absorb i_APCI3XXX_InsnWriteAnalogOutput()
Rename this CamelCase function and absorb it from hwdrv_apci3xxx.c
directly into the driver.

Tidy up the analog output subdevice init by adding some whitespace.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:42 -07:00
H Hartley Sweeten
fa81e2f186 staging: comedi: addi_apci_3xxx: refactor 'i_NbrAoChannel' boardinfo
The boards that have analog outputs always have 4 channels.

Remove the 'i_NbrAoChannel' data from the boardinfo and add a bit
field to indicate that the board 'has_ao'. Use that to conditionally
initialize the subdevice and open code the s->n_chan value of 4.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:42 -07:00
H Hartley Sweeten
f73abd3334 staging: comedi: addi_apci_3xxx: refactor i_APCI3XXX_InsnWriteAnalogOutput()
Rename the CamelCase local variables.

The comedi core validates the insn->chanspec to make sure the channel
number and range are valid for the subdevice. The extra checks in this
function are not required.

(*insn_write) functions are supposed to write all the data passed
in the data pointer (insn->n values) then return the number of data
values written of an errno. Fix this function to work like the core
expects.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:42 -07:00
H Hartley Sweeten
383390cfd4 staging: comedi: addi_apci_3xxx: tidy up the ttl digital i/o subdevice init
For aesthetic reasons, add some whitespace to the initialization of the
ttl digital i/o subdevices.

Fix the subdev_flags for the subdevice. The SDF_GROUND and SDF_COMMON
flags only apply to analog subdevices.

Fix the s->iobits for the subdevice. According to the datasheet:
	Port 0 (channels 0-7) are always outputs
	Port 1 (channels 8-15) are always inputs
	Port 2 (channels 9-23) are programmable i/o (default to inputs)

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
ca1cc85b0e staging: comedi: addi_apci_3xxx: tidy up the digital in and out subdevice init
For aesthetic reasons, add some whitespace to the initialization of the
digital input and output subdevices.

Fix the subdev_flags for both subdevices. The SDF_GROUND and SDF_COMMON
flags only apply to analog subdevices. Digital output subdevices do not
need the SDF_READABLE flag set.

Remove the initialization of s->io_bits. It only has meaning for
COMEDI_SUBD_DIO subdevices.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
f1861cb0d2 staging: comedi: addi_apci_3xxx: analog output 'maxdata' is always 12-bit
The boards that have analog outputs always have 12-bit resolution.

Remove the 'i_AoMaxdata' data from the boardinfo and open code the
s->maxdata. Use the hex value for the resolution since that is more
common in comedi drivers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
0ed9f25fbc staging: comedi: addi_apci_3xxx: refactor 'i_NbrTTLChannel' boardinfo
The boards that have ttl input and output channels always have 24
channels.

Remove the 'i_NbrTTLChannel' data from the boardinfo and add a bit
field to indicate that the board 'has_ttl_io'. Use that to conditionally
initialize the subdevice and open code the s->n_chan value of 24.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
4aab8bfd1d staging: comedi: addi_apci_3xxx: refactor 'i_NbrD[io]Channel' boardinfo
The boards that have digital input and output channels always have
4 inputs and 4 outputs.

Remove the 'i_NbrD[io]Channel' data from the boardinfo and add two
bit fields to indicate that the board 'has_dig_in' and 'has_dig_out'.
Use those to conditionally initialize the subdevices and open code
the s->n_chan value of 4 for both subdevices.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
1b5f2f4fa5 staging: comedi: addi_apci_3xxx: remove 'i_IorangeBase1' from boardinfo
This data in the boardinfo is not used. Remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
5c70cbfb3a staging: comedi: addi_apci_3xxx: move the copyright info to the driver
Move the copyright information from hwdrv_apci3xxx.c to the actual
driver, addi_apci_3xxx.c.

Reformat the information to follow the CodingStyle.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:41 -07:00
H Hartley Sweeten
225dfd10bf staging: comedi: addi_apci_3xxx: remove some unused includes
This driver does not use anything provided by these includes.
Remove them.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:40 -07:00
H Hartley Sweeten
641abdac09 staging: comedi: addi_apci_3xxx: remove COMEDI_SUBD_TTLIO
This driver abuses the enum comedi_subdevice_type by redefining
enum 11 - COMEDI_SUBD_SERIAL as COMEDI_SUBD_TTLIO. The subdevice
that uses COMEDI_SUBD_TTLIO is a TTL Digital Input/Output subdevice.

Remove COMEDI_SUBD_TTLIO and just use COMEDI_SUBD_DIO as the
subdevice type.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:40 -07:00
H Hartley Sweeten
1867add98e staging: comedi: addi_apci_3xxx: introduce a local private data definition
The struct addi_private definition from the addi-data "common" code is
very bloated. Introduce a local struct apci3xxx_private that just has
the data needed by this driver.

Add a couple includes that this driver depends on and remove the include
of "addi-data/addi_common.h" since this driver no longer depends on it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:40 -07:00
H Hartley Sweeten
e053b2419f staging: comedi: addi_apci_3xxx: introduce a private boardinfo definition
The struct addi_board definition from the addi-data "common" code is
very bloated. Introduce a private struct apci3xxx_boardinfo that just
has the data needed by this driver.

Move the #include "addi-data/hwdrv_apci3xxx.c" so it will have the new
struct definition.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:40 -07:00
H Hartley Sweeten
b9671585a9 staging: comedi: addi_apci_3xxx: remove (*insn_*) callbacks from boardinfo
The same subdevice callbacks are used by all the boards supported by
this driver. Remove the information from the boardinfo and initialize
the subdevices directly.

Remove the callback initializations that are always = NULL.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:40 -07:00
H Hartley Sweeten
f57b428c00 staging: comedi: addi_apci_3xxx: remove need for s_EeParameters
The boards supported by this driver do not have an eeprom. Remove the
need for the devpriv->s_EeParameters values by just using the values
from the boardinfo directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:40 -07:00
H Hartley Sweeten
56e18770ae staging: comedi: addi_apci_3xxx: digital output 'maxdata' is always '1'
Digital output subdevices always have a 'maxdata' of '1'. Remove the
'i_DoMaxData' boardinfo and just open code the value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:39 -07:00
H Hartley Sweeten
93c0dc284d staging: comedi: addi_apci_3xxx: boards do not have an eeprom
All of the boards supported by this driver have a PCI 9054 chip
without an attached eeprom.

Remove the unused support code that reads the eeprom.

Also, remove the unnecessary 'i_PCIEeprom' and 'pc_EepromChip' data
from the boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:39 -07:00
H Hartley Sweeten
178bd8d3a6 staging: comedi: addi_apci_3xxx: boards do not have a timer
None of the boards supported by this driver have a timer. Remove
the unnecessary code.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:39 -07:00
H Hartley Sweeten
fe220a444f staging: comedi: addi_apci_3xxx: driver does not use dma
This driver does not use dma. Remove the unnecessary code.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:39 -07:00
H Hartley Sweeten
2107347327 staging: comedi: addi_apci_3xxx: simplify the PCI bar reading
The boards supported by this driver all have an ADDIDATA_9054 eeprom.
Knowing this we can simplify the code that reads the PCI bars to get
the iobase address used by the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:39 -07:00
H Hartley Sweeten
98a856213e staging: comedi: addi_apci_3xxx: absorb the private comedi_lrange tables
All the boards supported by this driver have the same private
analog input and output ranges.  Absorb the comedi_lrange tables
from hwdrv_apci3xxx.c directly into the driver. For aesthetic
reasons, rename the tables so they have namespace associated
with the driver.

Remove the 'pr_AiRangelist' and 'pr_AoRangelist' data from the
boardinfo and use the range tables directly when initializing
the subdevices.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:39 -07:00
H Hartley Sweeten
6c5b0fff8e staging: comedi: addi_apci_3xxx: absorb v_APCI3XXX_Interrupt()
All the boards supported by this driver use the same 'interrupt'
callback in the boardinfo. Absorb the interrupt function from
hwdrv_apci3xxx.c directly into the driver. Rename the CamelCase
function to apci3xxx_irq_handler().

Remove v_ADDI_Interrupt(), which indirectly called the interrupt
function, and use apci3xxx_irq_handler instead when requesting
the irq. Remove the 'interrupt' callback from the boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:38 -07:00
H Hartley Sweeten
be68a01e30 staging: comedi: addi_apci_3xxx: tidy up v_APCI3XXX_Interrupt()
Remove the extra comments and rename the CamelCase local variables.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:38 -07:00
H Hartley Sweeten
ae57b69639 staging: comedi: addi_apci_3xxx: absorb apci3xxx_di_insn_bits()
All the boards supported by this driver that have digital inputs use
the same 'di_bits' callback in the boardinfo. Absorb the function from
hwdrv_apci3xxx.c directly into the driver.

Remove the 'di_bits' callback from the boardinfo and use the function
directly to set the subdevice (*insn_bits).

None of the boards supported by this driver have a 'di_config', 'di_read',
or 'io_write' callback. Remove the unnecessary setting of the subdevice
callbacks.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:38 -07:00
H Hartley Sweeten
c3d8605fca staging: comedi: addi_apci_3xxx: absorb apci3xxx_do_insn_bits()
All the boards supported by this driver that have digital outputs use
the same 'do_bits' callback in the boardinfo. Absorb the function from
hwdrv_apci3xxx.c directly into the driver.

Remove the 'do_bits' callback from the boardinfo and use the function
directly to set the subdevice (*insn_bits).

None of the boards supported by this driver have a 'do_config', 'do_write',
or 'do_read' callback. Remove the unnecessary setting of the subdevice
callbacks.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:38 -07:00
H Hartley Sweeten
5e72c7a507 staging: comedi: addi_apci_3xxx: absorb apci3xxx_reset()
All the boards supported by this driver use the same 'reset' callback
in the boardinfo. Absorb the reset function, apci3xxx_reset(), from
hwdrv_apci3xxx.c directly into the driver.

Remove i_ADDI_Reset(), which indirectly called the reset function, and
just call apci3xx_reset() directly. Remove the 'reset' callback from
the boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:38 -07:00
H Hartley Sweeten
98d3385dd6 staging: comedi: addi_apci_3xxx: separate from addi_common.c
This driver currently uses the addi-data "common" code and contains
a lot of bloat.

Copy the code in addi_common.c to this driver and remove the #include
that caused it to be compiled with the driver. This will allow removing
the bloat.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:38 -07:00
H Hartley Sweeten
7fd1fd30fd staging: comedi: addi_apci_3xxx: clean up i_APCI3XXX_Reset()
Rename the CamelCase function and variables.

Remove the extra comments. Leave the main comments to help with further
cleanup of this driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:33:37 -07:00
H Hartley Sweeten
588ba6dc5f staging: comedi: drivers: let core handle freeing s->private
Introduce a new subdevice runflags, SRF_FREE_SPRIV, and a new helper
function, comedi_set_spriv(), that the drivers can use to set the
comedi_subdevice private data pointer. The helper function will also
set SRF_FREE_SPRIV to allow the comedi core to automatically free the
subdevice private data during the cleanup_device() stage of the detach.

Currently s->private is only allocated by the 8255, addi_watchdog,
amplc_dio200_common, and ni_65xx drivers. All users of those drivers
can then have the comedi_spriv_free() calls removed and in many cases
the (*detach) can then simply be the appropriate comedi core provided
function.

The ni_65xx driver uses a helper function, ni_65xx_alloc_subdevice_private(),
to allocate the private data. Refactor the function to return an errno
or call comedi_set_spriv() instead of returning a pointer to the private
data and requiring the caller to handle it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-17 14:31:10 -07:00
H Hartley Sweeten
d50a2d5483 staging: comedi: pcl724: update the MODULE_DESCRIPTION
Change the MODULE_DESCRIPTION to something more useful than the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:48 -07:00
H Hartley Sweeten
8091fb739a staging: comedi: pcl724: fix 96 DIO configuration option
According to the comedi documentation at the beginning of the file,
configuration option 2 sets the number of DIO channels on the boards
that support 144 or 96 channels.

Fix the (*attach) to use the correct configuration option.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:48 -07:00
H Hartley Sweeten
e33437fc30 staging: comedi: pcl724: tidy up multi-line comments
Tidy up the multi-line comments are the beginning of the file to follow
the CodingStyle.

Cleanup the comedi comment block about the driver to follow the normal
comedi style.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:47 -07:00
H Hartley Sweeten
eea410ce66 staging: comedi: pcl724: remove 'dio' from boardinfo
This data in the boardinfo is not used by the driver. Remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:47 -07:00
H Hartley Sweeten
57aade1dae staging: comedi: pcl724: tidy up pcl724_attach()
Consolidate the special handling of the 'hoard->can_have96' flag.
This flag overrides the iorange and n_subdevices for the PCL-724
board when it is used in a 96 DIO configuration.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:46 -07:00
H Hartley Sweeten
84f7db9d8f staging: comedi: pcl724: tidy up subdev_8255_init() calls
subdev_8255_init() can fail, make sure to check for it and return
the errno.

The private function subdev_8255_cb() is identical to the default
io callback used by the 8255 driver. Remove it and pass NULL to
subdev_8255_init() so the default callback will be used.

The private function subdev_8255mapped_cb() is used for the memory
memory mapped io of the pet48dio board. Rename this function so
it has namespace associated with the driver.

Casting the iobase passed to subdev_8255_init() is not needed.
Use a local variable for the iobase and remove the casts.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:46 -07:00
H Hartley Sweeten
0a0c2cb96b staging: comedi: pcl724: tidy up the boardinfo struct definition
Remove the unnecessary comments and reorder the variables a bit.

Change the 'is_*' and 'can_*' flags to bit fields.

Remove the '*_SIZE' defines and open code the values.

Reorder the boardinfo declaration to follow the definition.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:45 -07:00
H Hartley Sweeten
0d4dd7d61b staging: comedi: pcl724: remove all '= 0' boardinfo
All uninitialized data will default to 0.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:44 -07:00
H Hartley Sweeten
0b69b44901 staging: comedi: pcl724: tidy up the boardinfo
Convert the boardinfo declaration to C99 format and move it near the
struct definition.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:44 -07:00
H Hartley Sweeten
313b83d390 staging: comedi: pcl724: remove interrupt support
Interrupt support in this driver is not complete.

Remove the #ifdef'ed out code in pcl724_attach() that validates
the interrupt number and does the request_irq().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-11 17:16:43 -07:00