The 'asic' and 'port' associated with a given subdevice can easily be
found based on the subdevice 'index'. With that information we can
then calculate the correct iobase and register offset needed to read/
write the 8-bit ports.
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>
It's simple enough to calculate the iobase when needed. Remove this
member from the private data.
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>
The number of subdevices needed by the driver is based on the
'num_asics' reported by the boardinfo and each subdevice always
has 24 channels. Simplify the attach a bit.
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>
These members of the boardinfo are not used by the driver. 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>
The 'subpriv' pointer is kzalloc'ed during the attach.
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>
This member of the subdevice private data is always initialize to
'0' due to the 'thisasic_chanct' always being zero when it is set
during the attach. Simplify the driver a bit by removing 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>
This member of the subdevice private data is always initialize to
s->n_chan if the subdevice supports interrupts and is only used
in functions that can be called by the interrupt subdevice.
Simplyfy the driver a bit by removing it and just using s->n_chan.
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>
This member of the subdevice private data is always initialize to
'0' due to the 'byte_no' always being zero when it is set during
the attach. Simplify the driver a bit by removing 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>
These members of the private data are either not referenced or are set
but never used by the driver. 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>
Introduce a helper function to handle writing a 24-bit value to the
three 8-bit registers associated with a "port" or "page".
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>
All the I/O ports are left unlocked in the driver so the 'pagelock'
in the private data is not necessary. The paranoia sanity checks
are also unnecessary, 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>
Add namespace to the register map defines. Gather them together
and tidy them up a bit.
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>
These functions are #ifdef'ed out and not needed in the driver.
Just 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>
As suggested by Ian Abbott, comedi_set_spriv() can only be used to
set the subdevice->private pointer to something that can be kfree()'d.
Rename the function to comedi_alloc_spriv() and have it kzalloc() the
memory as well as set the private pointer. This saves a function call
in the drivers and avoids the possibility of incorrectly calling
comedi_set_spriv() for some pointer that is not meant to be kfree()'d.
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>
None of the addi-data drivers that still use the "common" code have
ttl digital i/o. Remove the unnecessary boardinfo as well as the
subdevice initialization 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>
None of the addi-data drivers that still use the "common" code support
dma. Remove the unnecessaary boardinfo and private data flags.
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>
Due to the on-going cleanup of the addi-data drivers, the boardinfo
used in the "common" code has a number of variables that are not
used. Remove the cruft.
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>
Due to the on-going cleanup of the addi-data drivers, there are a
number of unused defines in addi_common.h. Remove the cruft.
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>
All of the remaining addi-data drivers that use the "common" code
either do not have an eeprom or the PCI controller chip is not a
PLX PCI 9054. Knowing this we can simplify the common code that
reads the PCI bars to get the iobase addresses.
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>
Due to the on-going cleanup of the addi-data drivers, the private
data used in the "common" code has a number of variables that
either are not used at all or or set but never used.
Remove all of them from the private data and the unnecessary use
in the 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>
The number of subdevices needed by a given board supported by this
driver can cary from 2 (for the apci3500) to a maximum of 5. Currently
this driver always allocates 7 subdevices and sets the subdevice type
to COMEDI_SUBD_UNUSED for the ones that are not needed.
Calculate the actual number of needed subdevices from the boardinfo
and only allocate and setup the ones that are used.
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>
The analog input subdevice support functions in hwdrv_apci3xxx.c
do not follow the comedi API.
The (*insn_config) function overrides the INSN_CONFIG_DIO_INPUT
instruction as an internal APCI3XXX_CONFIGURATION instruction. The
APCI3XXX_CONFIGURATION instruction requires 4 data parameters but
the comedi core sanity checks the INSN_CONFIG_DIO_INPUT instruction
which only has 1 data parameter. Because of this the (*insn_config)
function can never be called.
The (*insn_read) function is supposed to do "one-shot" or "software-
triggered" reads and return the data. The function in hwdrv_apci3xxx.c
does do this but it also is used to optionally start a "hardware-
triggered" conversion. Hardware-triggered conversions should be done
with the comedi_async command functions.
Delete the hwrdv_apci3xxx.c file and fix the analog input subdevice
in the driver by:
1) add a new (*insn_read) function for "one-shot" reads
2) implement the (*do_cmdtest) and (*do_cmd) functions for
"hardware-triggered" asyncronous reads
3) fix the interrupt handler to return the read data via the
comedi_async buffer
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>
The analog input subdevice in this driver is broken. The attach of
this driver requests the irq and sets the dev->read_subdev to the
analog input subdevice but it does not setup the subdevice to support
commands.
Stub in the command support functions so we can fix the subdevice.
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>
For aesthetic reasnons, add some whitespace to the analog input
subdevice initialization.
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>
The analog reference desired for the acquisition is stored in the
insn->chanspec that is passed to the (*insn_read) function. There is
no need to use a private data variable to hold the desired analog
reference that is set in the (*insn_config).
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>
The number of differential analog input channels is always half the
number of single-ended channels, 'ai_n_chan', or all the channels
if the board does not support single-ended channels. We can use the
'ai_subdev_flags' boardinfo to determine if the board does not support
single-ended channels.
To simplify the boardinfo, remove the 'i_NbrAiChannelDiff' and just
use 'ai_n_chan' to specify the number of channels.
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>
This boardinfo defines the conversion time bases that the analog input
subdevice supports (ns, us, ms).
Add some defines to get rid of the magic numbers and clarify the 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>
The analog input subdevice is broken in this driver. To help fix
it, tidy up this (*insn_config) helper function.
Rename the CamelCase function and all the CamelCase local variables.
Refactor the sanity checks to make the function a bit more concise
and remove the printk noise.
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>
The analog input subdevice is broken in this driver. To help fix
it, tidy up this (*insn_config) function.
Rename the CamelCase function.
Move the (insn->n == 4) test from i_APCI3XXX_AnalogInputConfigOperatingMode()
to this function.
Make the function a bit more concise and remove the printk noise.
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>
Some of the boards supported by this driver only have differential
analog inputs. Add a new boardinfo, 'ai_subdev_flags', to allow
properly setting the subdev_flags for the analog input subdevice.
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>
Rename this CamelCase boardinfo. Also, change its type to match
the type of comedi_subdevice 'maxdata'.
For aesthetic reasons, change the values to hex since this is more
common for the 'maxdata' values 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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
