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| author |   H Hartley Sweeten <hsweeten@visionengravers.com> | 2013-08-30 11:05:58 -0700 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-09-17 07:47:40 -0700 |
| commit | 97f4289ad08cffe55de06d4ac4f89ac540450aee (patch) | |
| tree | 9aac1e13dd79ecc23b38d6955f80bdcf68b020df /drivers/staging/comedi/drivers/adv_pci_dio.c | |
| parent | staging: comedi: usbdux drivers: use comedi_dio_update_state() (diff) | |
| download | linux-dev-97f4289ad08cffe55de06d4ac4f89ac540450aee.tar.xz linux-dev-97f4289ad08cffe55de06d4ac4f89ac540450aee.zip | |
staging: comedi: drivers: use comedi_dio_update_state() for simple cases
Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state for simple cases where the hardware is updated
when any channel is modified.
Also, fix a bug in the amplc_pc263 and amplc_pci263 drivers where the
current state is not returned in data[1].
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>
Diffstat (limited to 'drivers/staging/comedi/drivers/adv_pci_dio.c')
| -rw-r--r-- | drivers/staging/comedi/drivers/adv_pci_dio.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c index f091fa0d304d..6bac665261f8 100644 --- a/drivers/staging/comedi/drivers/adv_pci_dio.c +++ b/drivers/staging/comedi/drivers/adv_pci_dio.c @@ -448,45 +448,39 @@ static int pci_dio_insn_bits_di_w(struct comedi_device *dev, return insn->n; } -/* -============================================================================== -*/ static int pci_dio_insn_bits_do_b(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { const struct diosubd_data *d = (const struct diosubd_data *)s->private; int i; - if (data[0]) { - s->state &= ~data[0]; - s->state |= (data[0] & data[1]); + if (comedi_dio_update_state(s, data)) { for (i = 0; i < d->regs; i++) outb((s->state >> (8 * i)) & 0xff, dev->iobase + d->addr + i); } + data[1] = s->state; return insn->n; } -/* -============================================================================== -*/ static int pci_dio_insn_bits_do_w(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { const struct diosubd_data *d = (const struct diosubd_data *)s->private; int i; - if (data[0]) { - s->state &= ~data[0]; - s->state |= (data[0] & data[1]); + if (comedi_dio_update_state(s, data)) { for (i = 0; i < d->regs; i++) outw((s->state >> (16 * i)) & 0xffff, dev->iobase + d->addr + 2 * i); } + data[1] = s->state; return insn->n; @@ -641,12 +635,10 @@ static int pci1760_insn_bits_di(struct comedi_device *dev, return insn->n; } -/* -============================================================================== -*/ static int pci1760_insn_bits_do(struct comedi_device *dev, struct comedi_subdevice *s, - struct comedi_insn *insn, unsigned int *data) + struct comedi_insn *insn, + unsigned int *data) { int ret; unsigned char omb[4] = { @@ -657,14 +649,13 @@ static int pci1760_insn_bits_do(struct comedi_device *dev, }; unsigned char imb[4]; - if (data[0]) { - s->state &= ~data[0]; - s->state |= (data[0] & data[1]); + if (comedi_dio_update_state(s, data)) { omb[0] = s->state; ret = pci1760_mbxrequest(dev, omb, imb); if (!ret) return ret; } + data[1] = s->state; return insn->n; |