Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.
Signed-off-by: H Hartley Sweeten <hswee...@visionengravers.com>
Cc: Ian Abbott <abbo...@mev.co.uk>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
drivers/staging/comedi/drivers/addi_apci_16xx.c | 12 +++---------
drivers/staging/comedi/drivers/addi_apci_3xxx.c | 9 ++-------
drivers/staging/comedi/drivers/ii_pci20kc.c | 7 ++-----
drivers/staging/comedi/drivers/me4000.c | 26 +++++--------------------
drivers/staging/comedi/drivers/me_daq.c | 8 ++------
drivers/staging/comedi/drivers/pcmuio.c | 10 ++++------
drivers/staging/comedi/drivers/s626.c | 15 ++++----------
7 files changed, 22 insertions(+), 65 deletions(-)
diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c
b/drivers/staging/comedi/drivers/addi_apci_16xx.c
index 9652374..3469676 100644
--- a/drivers/staging/comedi/drivers/addi_apci_16xx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c
@@ -87,17 +87,11 @@ static int apci16xx_dio_insn_bits(struct comedi_device *dev,
struct comedi_insn *insn,
unsigned int *data)
{
- unsigned int mask = data[0];
- unsigned int bits = data[1];
-
- /* Only update the channels configured as outputs */
- mask &= s->io_bits;
- if (mask) {
- s->state &= ~mask;
- s->state |= (bits & mask);
+ unsigned int mask;
+ mask = comedi_dio_update_state(s, data);
+ if (mask)
outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index));
- }
data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index));
diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
index fcec604..761cbf8 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
@@ -711,16 +711,11 @@ static int apci3xxx_dio_insn_bits(struct comedi_device
*dev,
struct comedi_insn *insn,
unsigned int *data)
{
- unsigned int mask = data[0];
- unsigned int bits = data[1];
+ unsigned int mask;
unsigned int val;
- /* only update output channels */
- mask &= s->io_bits;
+ mask = comedi_dio_update_state(s, data);
if (mask) {
- s->state &= ~mask;
- s->state |= (bits & mask);
-
if (mask & 0xff)
outl(s->state & 0xff, dev->iobase + 80);
if (mask & 0xff0000)
diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c
b/drivers/staging/comedi/drivers/ii_pci20kc.c
index 5c3a318..8577778 100644
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ b/drivers/staging/comedi/drivers/ii_pci20kc.c
@@ -378,13 +378,10 @@ static int ii20k_dio_insn_bits(struct comedi_device *dev,
unsigned int *data)
{
struct ii20k_private *devpriv = dev->private;
- unsigned int mask = data[0] & s->io_bits; /* outputs only */
- unsigned int bits = data[1];
+ unsigned int mask;
+ mask = comedi_dio_update_state(s, data);
if (mask) {
- s->state &= ~mask;
- s->state |= (bits & mask);
-
if (mask & 0x000000ff)
writeb((s->state >> 0) & 0xff,
devpriv->ioaddr + II20K_DIO0_REG);
diff --git a/drivers/staging/comedi/drivers/me4000.c
b/drivers/staging/comedi/drivers/me4000.c
index 8f4afad..be6c5d5 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -1313,29 +1313,15 @@ static int me4000_ao_insn_read(struct comedi_device
*dev,
return 1;
}
-/*=============================================================================
- Digital I/O section
- ===========================================================================*/
-
static int me4000_dio_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+ struct comedi_insn *insn,
+ unsigned int *data)
{
- /*
- * The insn data consists of a mask in data[0] and the new data
- * in data[1]. The mask defines which bits we are concerning about.
- * The new data must be anded with the mask.
- * Each channel corresponds to a bit.
- */
- if (data[0]) {
- /* Check if requested ports are configured for output */
- if ((s->io_bits & data[0]) != data[0])
- return -EIO;
-
- s->state &= ~data[0];
- s->state |= data[0] & data[1];
+ unsigned int mask;
- /* Write out the new digital output lines */
+ mask = comedi_dio_update_state(s, data);
+ if (mask) {
outl((s->state >> 0) & 0xFF,
dev->iobase + ME4000_DIO_PORT_0_REG);
outl((s->state >> 8) & 0xFF,
@@ -1346,8 +1332,6 @@ static int me4000_dio_insn_bits(struct comedi_device *dev,
dev->iobase + ME4000_DIO_PORT_3_REG);
}
- /* On return, data[1] contains the value of
- the digital input and output lines. */
data[1] = ((inl(dev->iobase + ME4000_DIO_PORT_0_REG) & 0xFF) << 0) |
((inl(dev->iobase + ME4000_DIO_PORT_1_REG) & 0xFF) << 8) |
((inl(dev->iobase + ME4000_DIO_PORT_2_REG) & 0xFF) << 16) |
diff --git a/drivers/staging/comedi/drivers/me_daq.c
b/drivers/staging/comedi/drivers/me_daq.c
index 00ebf4d..24ec9ef 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -222,15 +222,11 @@ static int me_dio_insn_bits(struct comedi_device *dev,
struct me_private_data *dev_private = dev->private;
void __iomem *mmio_porta = dev_private->me_regbase + ME_DIO_PORT_A;
void __iomem *mmio_portb = dev_private->me_regbase + ME_DIO_PORT_B;
- unsigned int mask = data[0];
- unsigned int bits = data[1];
+ unsigned int mask;
unsigned int val;
- mask &= s->io_bits; /* only update the COMEDI_OUTPUT channels */
+ mask = comedi_dio_update_state(s, data);
if (mask) {
- s->state &= ~mask;
- s->state |= (bits & mask);
-
if (mask & 0x0000ffff)
writew((s->state & 0xffff), mmio_porta);
if (mask & 0xffff0000)
diff --git a/drivers/staging/comedi/drivers/pcmuio.c
b/drivers/staging/comedi/drivers/pcmuio.c
index 67e2bb1..43b0d8a 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -203,12 +203,12 @@ static unsigned int pcmuio_read(struct comedi_device *dev,
*/
static int pcmuio_dio_insn_bits(struct comedi_device *dev,
struct comedi_subdevice *s,
- struct comedi_insn *insn, unsigned int *data)
+ struct comedi_insn *insn,
+ unsigned int *data)
{
- unsigned int mask = data[0] & s->io_bits; /* outputs only */
- unsigned int bits = data[1];
int asic = s->index / 2;
int port = (s->index % 2) ? 3 : 0;
+ unsigned int mask;
unsigned int val;
/* get inverted state of the channels from the port */
@@ -217,10 +217,8 @@ static int pcmuio_dio_insn_bits(struct comedi_device *dev,
/* get the true state of the channels */
s->state = val ^ ((0x1 << s->n_chan) - 1);
+ mask = comedi_dio_update_state(s, data);
if (mask) {
- s->state &= ~mask;
- s->state |= (mask & bits);
-
/* invert the state and update the channels */
val = s->state ^ ((0x1 << s->n_chan) - 1);
pcmuio_write(dev, val, asic, 0, port);
diff --git a/drivers/staging/comedi/drivers/s626.c
b/drivers/staging/comedi/drivers/s626.c
index d22b95d..2d8b780 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1638,19 +1638,12 @@ static int s626_dio_insn_bits(struct comedi_device *dev,
unsigned int *data)
{
unsigned long group = (unsigned long)s->private;
- unsigned long mask = data[0];
- unsigned long bits = data[1];
-
- if (mask) {
- /* Check if requested channels are configured for output */
- if ((s->io_bits & mask) != mask)
- return -EIO;
-
- s->state &= ~mask;
- s->state |= (bits & mask);
+ unsigned long mask;
+ mask = comedi_dio_update_state(s, data);
+ if (mask)
DEBIwrite(dev, LP_WRDOUT(group), s->state);
- }
+
data[1] = DEBIread(dev, LP_RDDIN(group));
return insn->n;
--
1.8.3.2
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