This patch for s626.c propagates the errors from the newly introduced
calls to comedi_timeout() as far as possible.
Signed-off-by: Chase Southwood <chase.southwood@yahoo.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch changes a handful of while loops to timeouts to prevent
infinite looping on hardware failure. A couple such loops are in a
function (s626_debi_transfer()) which is called from critical sections,
so comedi_timeout() is unusable for them, and an iterative timeout is
used instead. For the while loops in a context where comedi_timeout() is
allowed, a new callback function, s626_send_dac_eoc(), has been defined
to evaluate the conditions that the while loops are testing. The new
callback employs a switch statement based on a simple new enum so that
it is usable for all of the different conditions tested in while loops
in s626_send_dac(). The proper comedi_timeout() calls are then used.
Signed-off-by: Chase Southwood <chase.southwood@yahoo.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The comedi core resets the async->events in comedi_buf_reset() which is
called when the subdevice is restored to an idle state and at the start
of an async command. The async->events are also cleared after handling
the events in comedi_event().
Drivers should not clear the events manually.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Update the Kconfig so that COMEDI_QUATECH_DAQP_CS selects COMEDI_FC.
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>
Use the comedi_fc helper function instead of duplicating the code.
In the Kconfig, COMEDI_NI_PCIDIO selects COMEDI_FC indirectly by
selecting COMEDI_MITE which selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Also, remove the clearing of the events, comedi_event() does that.
In the Kconfig, COMEDI_NI_LABPC already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Update the Kconfig so that COMEDI_DT3000 selects COMEDI_FC.
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>
Use the comedi_fc helper function instead of duplicating the code.
In the Kconfig, COMEDI_NI_660X selects COMEDI_FC indirectly by selecting
COMEDI_NI_TIOCMD which selects COMEDI_MITE which selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Update the Kconfig so that COMEDI_PCL818 selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Update the Kconfig so that COMEDI_PCL816 selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Update the Kconfig so that COMEDI_PCL812 selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Also, remove the clearing of the events, comedi_event() does that.
In the Kconfig, COMEDI_CB_PCIDAS already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
In the Kconfig, COMEDI_AMPLC_PCI224 already selects COMEDI_FC.
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 ni_event() function in this file is an open coded version of
cfc_handle_events() where instead of calling the subdevice (*cancel)
function a switch is used to call the function based on the subdevice
'index'.
Use the comedi_fc helper function to simplify the code.
This also allows removing a couple of the forward declarations.
Fix the #ifdef/#endif for the ni_gpct_cancel() foward declaration and
around the function. This function is now only referenced by code that
is blocked with #ifdef PCIDMA.
This source file is included by the ni_atmio, ni_mio_cs, and ni_pcimio
drivers. In the Kconfig, the config options for these drivers already
select COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Also, remove the clearing of the events, comedi_event() does that.
In the Kconfig, COMEDI_NI_AT_A2150 already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
This also fixes two bugs.
1) the analog input command is canceled due to a buffer overflow
without sending an event (@@ -341,7 +340,7 @@).
2) an analog output error causes the command to cancel but the event
is reported to the analog input subdevice (@@ -449,15 +447,13 @@).
In the Kconfig, COMEDI_DT282X already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
In the Kconfig, COMEDI_DAS1800 already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Also, remove the clearing of the event, comedi_event() does that.
In the Kconfig, COMEDI_DAS800 already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
In the Kconfig, COMEDI_DAS16M1 already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
Update the Kconfig to select COMEDI_FC when COMEDI_ADL_PCI9111 is enabled.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
In the Kconfig, COMEDI_ADL_PCI9111 already selects COMEDI_FC.
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>
Use the comedi_fc helper function to automatically call the subdevice
(*cancel) function when needed and call comedi_event().
In the Kconfig, COMEDI_ADL_PCI9118 already selects COMEDI_FC.
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>
Use the comedi_fc helper function instead of duplicating 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>
Rename this function to cfc_inc_scan_progress() and export it for
use by the 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>
This helper function is a bit long to be inlined. Move it to the
source file and export it.
The mite driver is the only external user right now. Update the
Kconfig to select COMEDI_FC when COMEDI_MITE is enabled.
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 function returns the total number of bytes for a full scan of
an async command chanlist. The returned value is an unsigned int.
Change all the local variables to unsigned int and use a local
variable for the s->async->cmd.chanlist_len.
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>
Typically the comedi_subdevice variable is simply named 's'. Rename
the variables in comedi_fc.h.
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 'extern' is not needed in the prototypes for the exported functions
in the header. 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>
Tidy up the multi-line comment 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>
The dev_warn() will automatically have the "comedi" prefix.
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>
Typically the comedi_subdevice variable is simply named 's'. Rename
the variables in this file.
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>
Tidy up the multi-line comment 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>
For aesthetics, move the MODULE_* information to the end of the file
and move the module_{init,exit}() after the functions.
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 just the subdevice 'index'. Use
that instead and remove the member.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rename this private struct so it has namespace associated with the
driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rename this private struct so it has namespace associated with the
driver.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This member of the private data is actually the number of subdevices. We
can get that information directly from the comedi_device. Do that instead
and remove the unnecessary member from the private data.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Create an enum for the boards supported by this driver and pass that enum in
the pci_driver id_table as the driver_data.
Introduce a boardinfo struct to hold the board specific data for the boards
supported by this driver. Use the boardinfo when attaching to the driver
instead of using the pcidev->device and the switch.
Since the PCI device ids are now only used in the id_table, remove the
defines and open code the device ids.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Refactor this function to make it clearer.
The channel does not need to be validated. The comedi core does that for us.
Exit early if the subdevice private data is invalid.
Exit early if the subdevice 'state' is not done or there is an error.
Factor out the code that actually reads the channel data to reduce the
indent level.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetics, rename the subdevice private data pointer from 'p' to
'spriv' and add a local variable for the comedi_subdevice pointer.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This callback function for comedi_load_firmware() first validates that
the firmware data is the correct format then it writes the data to each
subdevice.
Split the two operations out as separate functions to clarify the code.
Tidy up the new functions.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Refactor the function to reduce the indent level.
For aesthetics, rename the subdevice private data pointer from 'p'
to 'spriv'.
Rename the lacal variable used for the channel->full_scale to 'fs'
to reduce the line lengths.
Remove the setting of range[8]. The min,max values are the same as
the ones used when the subdevice private data was allocated and
initialized.
Remove the poll_delay_min_max() that are the same as the default.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetics, rename the subdevice private data pointer from 'subdevpriv'
to 'spriv' and add a local variable for the comedi_subdevice pointer.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetics, rename the subdevice private data pointer from 'p'
to 'spriv' and the variable used to check the errno from 'result'
to 'ret'.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Factor the code that allocates and initializes the subdevice private data
out of the (*attach) to reduce the indent level and make the code easier
to follow.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the helper function to allocate the subdevice private data. This
sets the s->private variable for us and allows the comedi core to
automatically kfree() the memory during the (*detach).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For aesthetics, use a pointer to the comedi_subdevice instead of
accessing the dev->subdevices array directly.
Move the local variable for the subdevice private data so that
this function does not declare the variable twice.
Change the kzalloc for the subdevice private data to remove the
sizeof(struct foo).
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The COMEDI_CMD and COMEDI_CMDTEST ioctl functions both copy the chanlist
passed by the user from __user memory space to kernel memory space. They
then do some sanity checking of the chanlist with comedi_check_chanlist()
before the subdevice (*do_cmdtest) and (*do_cmd) operations are called.
Introduce a helper function to handle the memdup_user() and the sanity
checking.
Also, remove the unnecessary dev_dbg() when the memdup_user() or
comedi_check_chanlist() fail.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The COMEDI_CMD and COMEDI_CMDTEST ioctl functions both copy the
comedi_cmd passed by the user from __user memory space to kernel
memory space. They then do some basic sanity checking of the cmd
before the subdevice (*do_cmdtest) and (*do_cmd) operations are
called.
Introduce a helper function to handle the copy_from_user() and
do the basic sanity checking.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch fixes the following sparse warnings:
drivers/staging/comedi/drivers/mite.c:343:44: warning: incorrect type in assignment (different base types)
drivers/staging/comedi/drivers/mite.c:343:44: expected unsigned int [unsigned] [usertype] count
drivers/staging/comedi/drivers/mite.c:343:44: got restricted __le32 [usertype] <noident>
drivers/staging/comedi/drivers/mite.c:344:43: warning: incorrect type in assignment (different base types)
drivers/staging/comedi/drivers/mite.c:344:43: expected unsigned int [unsigned] [usertype] addr
drivers/staging/comedi/drivers/mite.c:344:43: got restricted __le32 [usertype] <noident>
drivers/staging/comedi/drivers/mite.c:346:43: warning: incorrect type in assignment (different base types)
drivers/staging/comedi/drivers/mite.c:346:43: expected unsigned int [unsigned] [usertype] next
drivers/staging/comedi/drivers/mite.c:346:43: got restricted __le32 [usertype] <noident>
drivers/staging/comedi/drivers/mite.c:351:45: warning: incorrect type in assignment (different base types)
drivers/staging/comedi/drivers/mite.c:351:45: expected unsigned int [unsigned] [usertype] next
drivers/staging/comedi/drivers/mite.c:351:45: got restricted __le32 [usertype] <noident>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
