Add an optional callback function pointer to the board data to be called
when checking if an interrupt has occurred and to clear it if it has.
Since the callback returns `bool`, change a few other `int` values to
`bool` to match.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
`pc236_intr_enable()` and `pc236_intr_disable()` are very similar.
Combine them into a single function `pc236_intr_update()` with a
parameter to indicate whether interrupts are being enabled or disabled.
Change type type of the `enable_irq` member of the private data to
`bool` to match the parameter.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Add an optional callback function pointer to the board data to be called
when interrupts are logically enabled or disabled to update the hardware
registers.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
If an asynchronous command was running when the device is being
detached, the comedi core would have called the subdevice `cancel`
handler (`pc236_intr_cancel()`) before calling the `detach` handler
(`pc236_detach()`). Since the cancel handler disables hardware
interrupts (at least for the PCI236 board) by calling
`pc236_disable_intr()`, there is no need for the detach handler to do so
as well. Remove the call to `pc236_disable_intr()` from
`pc236_detach()`.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Move the static board data in `pc236_isa_boards[]` and `pc236_pci_board`
closer to where they are used.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
`dio200_pci_detach()` doesn't need to check if the pointer to constant
board data (`thisboard`) and the pointer to private per-device data
(`devpriv`) are valid before calling `amplc_dio200_common_detach()`. It
has no further need to check `thisboard` so remove the variable
altogether. Move the test of `devpriv` to the first point it is needs
to be valid.
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>
`amplc_dio200_common_detach()` doesn't do much apart from freeing the
IRQ handler that was requested by `amplc_dio200_common_attach()` if
`dev->irq` is non-zero. There is no need to check if the pointer to
the constant board data or the pointer to private per-device data
exist, so remove those tests.
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>
`dio200_detach()` in "amplc_dio200.c" calls
`amplc_dio200_common_detach()` in "amplc_dio200_common.c", followed by
`comedi_legacy_detach()` in "../drivers.c". Both of those functions
call `free_irq()` if `dev->irq` is non-zero. The second call produces a
warning message because the handler has already been freed. Prevent
that by setting `dev->irq = 0` in `amplc_dio200_common_detach()`.
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>
For PCI boards, the `auto_attach` handler, `pc236_auto_attach()`,
initializes `dev->board_ptr` to point to a `struct pc236_board`, but
leaves `dev->board_name` unchanged. The Comedi core will have
initialized `dev->board_name` to the `driver_name` string member of
`amplc_pc236_driver`. For consistency with ISA boards manually
configured by the `COMEDI_DEVCONFIG` ioctl via the legacy `attach`
handler, `pc236_attach()`, set `dev->board_name` to the `name` member of
the `struct pc236_board` pointed to by `dev->board_ptr`.
Both `pc236_attach()` and `pc236_auto_attach()` call
`pc236_common_attach()`, which also sets `dev->board_name` to the `name`
member of the `struct pc236_board`. Since this assignment no longer
changes anything, remove it.
A nice side-effect of this change is that the same owner name string is
used for requesting I/O regions (before the call the
`pc236_common_attach()`) as is used for requesting the IRQ handler
(during the call to `pc236_common_attach()`). It was already the same
for (manually configured) ISA boards, but is now the same for
(automatically configured) PCI boards.
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>
The `PCI_DEVICE_ID_AMPLICON_PCI236` macro is only used once, in the
module device table, so remove it and expand the macro in the table.
`The `PCI_DEVICE_ID_INVALID` macro is no longer used, so remove it.
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>
Since only a single PCI board is supported by the driver, there is no
need to call `pc236_find_pci_board()` to find the a board entry with
matching PCI device ID in `pc236_pci_boards[]`. Just point to the entry
directly and remove the look-up function. In fact, there is no reason
for `pc236_pci_boards[]` to be an array, so change it to a non-array
variable and rename it to `pc236_pci_board`. Also, the `devid` member
of `struct pc236_board` is no longer needed as it was only used by the
look-up function, so remove it.
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>
Since the legacy attach routine `pc236_attach()` is only called for
board names matching an entry in our array of ISA boards
`pc236_isa_boards[]`, and it is reasonable to expect all elements of
`pc236_isa_boards[]` to have their `bustype` member initialized
correctly to `isa_bustype`, don't bother checking the bus type in
`pc236_attach()`. Add `if (!DO_ISA) return -EINVAL` to optimize out the
remainder of the function if `CONFIG_COMEDI_AMPLC_PC236_ISA` is not
defined.
Similarly, don't bother checking the bus type in
`pc236_find_pci_board()` as it is reasonable to expect all elements of
`pc236_pci_boards[]` to have their `bustype` member initialized
correctly to `pci_bustype`.
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>
Split `pc236_boards[]` into `pc236_isa_boards[]` for ISA cards and
`pc236_pci_boards[]` for PCI cards (there is only one of each). Only
initialize the board name look-up members of `struct comedi_driver
amplc_pc236_driver` if the ISA part of the driver is enabled in the
kernel config (`CONFIG_COMEDI_AMPLC_PC236_ISA`) using the array of ISA
boards (`pc236_isa_boards[]`). The driver doesn't allow manual
configuration of PCI devices, so there is no point having the comedi
core match the names of the PCI boards before it calls our driver's
legacy attach routine (`pc236_attach()`).
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>
The `model` member of `struct pc236_board` is no longer used since the
code to remove manual configuration of PCI devices was removed. Get rid
of it.
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>
Absorb `pc236_pci_common_attach()` into `pc236_auto_attach()` since
that's the only place it is called from.
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>
The call to `comedi_set_hw_dev()` from `pc236_pci_common_attach()` is
now unnecessary since `pc236_pci_common_attach()` is now only called
from this driver's `auto_attach` hook `pc236_auto_attach()` and the
comedi core now calls `comedi_set_hw_dev()` before calling that. Remove
the unnecessary call.
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>
Now that this driver no longer supports "manual" attachment of PCI
devices in its `attach` hook (`pc236_attach()`), it no longer has code
that searches for a suitable PCI device and increments its reference
count. Since the driver no longer has any reason for incrementing and
decrementing the PCI device's reference count, the calls to
`pci_dev_get()` and `pci_dev_put()` can be removed.
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>
Remove the code that allows PCI boards to be manually attached by the
`COMEDI_DEVCONFIG` ioctl (or the "comedi_config" application).
Supported PCI boards (PCI236) will be attached automatically at probe
time via `comedi_pci_auto_config()` and the `auto_attach` hook in the
`struct comedi_driver`.
The "wildcard" entry in `pc236_boards[]` was only used when manually
attaching a PCI board using a driver name instead of a board name, so is
no longer needed. Remove it.
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>
Use preferred style for copyright and driver description 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>
Convert the printk(KERN_ERR ...) in ni_m_clk_src() to a pr_err().
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>
Move some of the functions to remove the need for the forward
declarations.
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>
Do some renaming of local vars, etc. to tidy up the ugly line breaks
to improve the readability of 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>
Remove the static const local variable and add a blank line after
the declarations.
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 is only called by ni_tio_set_gate_src(). For aesthetics,
absorb the code into that 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>
Do some renaming of local vars, parameters, etc. to tidy up the ugly
line breaks to improve the readability of 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>
Invert the counter_dev->variant test to reduce the indent level of
this 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>
Do some renaming of local vars, parameters, etc. to tidy up the ugly
line breaks to improve the readability of 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>
This function is only called to handle the INSN_CONFIG_GET_COUNTER_STATUS
instruction. For aesthetics, absorb the code into ni_tio_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>
Fix the > 80 char line issues in this 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 a local variable to fix the > 80 char line issues.
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 a local variable to fix the > 80 char line issues.
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, rename this function to shorten some of the long lines.
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 is called to initialize/reset a gpct counter during a
comedi drivers (*attach).
For aesthetics, move this exported function toward the end of the file.
Tidy up the functions a bit by just open coding the '0x0' values used
to initialize some of the registers.
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 these exported functions to the end of the file.
Tidy up the functions a bit and remove the BUG_ON when (num_counters == 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>
For aesthetics, move all the defines to the head of the 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>
These values are not used as an enum. For aesthetics, rename the
CamelCase values and convert them into defines.
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 values are not used as an enum. For aesthetics, rename the
CamelCase values and convert them into defines.
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 values are not used as an enum. For aesthetics, rename the
CamelCase values and convert them into defines.
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 values are not used as an enum. For aesthetics, rename the
CamelCase values and convert them into defines.
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 values are not used as an enum. For aesthetics, rename the
CamelCase values and convert them into defines.
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, remove this global static const varaible.
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, convert the global static const varaibles into defines.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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 BUG_ON() in this function can never happen.
For aesthetics, rename this CamelCase inline function and convert it into
a simple macro.
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>
