d8b0e4230f
`struct pci230_private` has two members to manage the enabled interrupt sources. `int_en` is the interrupt sources we want to be enabled and `ier` is a shadow of the write-only interrupt enable register. They have the same value most of the time. They differ in the interrupt handler (`pci230_interrupt()`) itself when it temporarily clears bits in the interrupt enable register and the `ier` member in order to unlatch them in hardware, but leaves the `int_en` member alone. They also differ in `pci230_ai_stop()` and `pci230_ao_stop()` which clear bits in the `int_en` member and wait for the interrupt handler to finish before copying the value to the `ier` member and the interrupt enable register. Simplify the handling a bit, by making the `ier` member take on the role of the `int_en` member, and allowing the value to differ from the interrupt enable register while the interrupt handler is running. 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> |
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| .. | ||
| drivers | ||
| kcomedilib | ||
| comedi_buf.c | ||
| comedi_compat32.c | ||
| comedi_compat32.h | ||
| comedi_fops.c | ||
| comedi_internal.h | ||
| comedi_pci.c | ||
| comedi_pcmcia.c | ||
| comedi_usb.c | ||
| comedi.h | ||
| comedidev.h | ||
| comedilib.h | ||
| drivers.c | ||
| Kconfig | ||
| Makefile | ||
| proc.c | ||
| range.c | ||
| TODO | ||