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staging: comedi: addi_apci_3120: tidy up timer_mode masking

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Define a macro that returns the mask of the timer_mode bits for a given
timer. Use the macro to remove the "magic" values used to clear the bits.

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 commit is contained in:
H Hartley Sweeten
2014-11-04 10:53:53 -07:00
committed by Greg Kroah-Hartman
parent 486beeb488
commit 2016c534dd
2 changed files with 9 additions and 8 deletions
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16
drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
View File

@@ -373,7 +373,7 @@ static int apci3120_ai_insn_read(struct comedi_device *dev,
return -EINVAL;
/* Initialize Timer 0 mode 4 */
devpriv->timer_mode &= 0xfc;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(0);
devpriv->timer_mode |= APCI3120_TIMER_0_MODE_4;
outb(devpriv->timer_mode,
dev->iobase + APCI3120_TIMER_CRT1);
@@ -456,7 +456,7 @@ static int apci3120_ai_insn_read(struct comedi_device *dev,
return -EINVAL;
/* Initialize Timer 0 mode 2 */
devpriv->timer_mode &= 0xfc;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(0);
devpriv->timer_mode |= APCI3120_TIMER_0_MODE_2;
outb(devpriv->timer_mode,
dev->iobase + APCI3120_TIMER_CRT1);
@@ -755,7 +755,7 @@ static int apci3120_cyclic_ai(int mode,
switch (mode) {
case 1:
/* init timer0 in mode 2 */
devpriv->timer_mode &= 0xfc;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(0);
devpriv->timer_mode |= APCI3120_TIMER_0_MODE_2;
outb(devpriv->timer_mode, dev->iobase + APCI3120_TIMER_CRT1);
@@ -765,7 +765,7 @@ static int apci3120_cyclic_ai(int mode,
case 2:
/* init timer1 in mode 2 */
devpriv->timer_mode &= 0xf3;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(1);
devpriv->timer_mode |= APCI3120_TIMER_1_MODE_2;
outb(devpriv->timer_mode, dev->iobase + APCI3120_TIMER_CRT1);
@@ -773,7 +773,7 @@ static int apci3120_cyclic_ai(int mode,
apci3120_timer_write(dev, 1, divisor1);
/* init timer0 in mode 2 */
devpriv->timer_mode &= 0xfc;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(0);
devpriv->timer_mode |= APCI3120_TIMER_0_MODE_2;
outb(devpriv->timer_mode, dev->iobase + APCI3120_TIMER_CRT1);
@@ -824,7 +824,7 @@ static int apci3120_cyclic_ai(int mode,
dev->iobase + APCI3120_WRITE_MODE_SELECT);
/* (1) Init timer 2 in mode 0 and write timer value */
devpriv->timer_mode &= 0x0f;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(2);
devpriv->timer_mode |= APCI3120_TIMER_2_MODE_0;
outb(devpriv->timer_mode,
dev->iobase + APCI3120_TIMER_CRT1);
@@ -1422,7 +1422,7 @@ static int apci3120_config_insn_timer(struct comedi_device *dev,
dev->iobase + APCI3120_WRITE_MODE_SELECT);
if (data[0] == APCI3120_TIMER) { /* initialize timer */
/* Set the Timer 2 in mode 2(Timer) */
devpriv->timer_mode &= 0x0f;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(2);
devpriv->timer_mode |= APCI3120_TIMER_2_MODE_2;
outb(devpriv->timer_mode, dev->iobase + APCI3120_TIMER_CRT1);
@@ -1435,7 +1435,7 @@ static int apci3120_config_insn_timer(struct comedi_device *dev,
} else { /* Initialize Watch dog */
/* Set the Timer 2 in mode 5(Watchdog) */
devpriv->timer_mode &= 0x0f;
devpriv->timer_mode &= ~APCI3120_TIMER_MODE_MASK(2);
devpriv->timer_mode |= APCI3120_TIMER_2_MODE_5;
outb(devpriv->timer_mode, dev->iobase + APCI3120_TIMER_CRT1);

1
drivers/staging/comedi/drivers/addi_apci_3120.c
View File

@@ -20,6 +20,7 @@
#define APCI3120_AO_REG(x) (0x08 + (((x) / 4) * 2))
#define APCI3120_AO_MUX(x) (((x) & 0x3) << 14)
#define APCI3120_AO_DATA(x) ((x) << 0)
#define APCI3120_TIMER_MODE_MASK(_t) (3 << ((_t) * 2))
#define APCI3120_CTR0_REG 0x0d
#define APCI3120_CTR0_DO_BITS(x) ((x) << 4)
#define APCI3120_CTR0_TIMER_SEL(x) ((x) << 0)