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staging: comedi: addi_apci_1516: define the watchdog control register 

Add defines for the bits in the watchdog control register and use
them to remove the "magic" numbers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2012-11-13 13:37:31 -07:00 committed by Greg Kroah-Hartman
parent f57f797a6c
commit 393cc220bd
1 changed files with 6 additions and 2 deletions
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8
drivers/staging/comedi/drivers/addi-data/hwdrv_apci1516.c
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@ -64,6 +64,8 @@ You should also find the complete GPL in the COPYING file accompanying this sour
#define APCI1516_WDOG_RELOAD_LSB_REG 0x04
#define APCI1516_WDOG_RELOAD_MSB_REG 0x06
#define APCI1516_WDOG_CTRL_REG 0x0c
#define APCI1516_WDOG_CTRL_ENABLE (1 << 0)
#define APCI1516_WDOG_CTRL_SOFT_TRIG (1 << 9)
#define APCI1516_WDOG_STATUS_REG 0x10
#define ADDIDATA_WATCHDOG 2
@ -182,10 +184,12 @@ static int i_APCI1516_StartStopWriteWatchdog(struct comedi_device *dev,
outw(0x0, devpriv->i_IobaseAddon + APCI1516_WDOG_CTRL_REG);
break;
case 1: /* start the watchdog */
outw(0x0001, devpriv->i_IobaseAddon + APCI1516_WDOG_CTRL_REG);
outw(APCI1516_WDOG_CTRL_ENABLE,
devpriv->i_IobaseAddon + APCI1516_WDOG_CTRL_REG);
break;
case 2: /* Software trigger */
outw(0x0201, devpriv->i_IobaseAddon + APCI1516_WDOG_CTRL_REG);
outw(APCI1516_WDOG_CTRL_ENABLE | APCI1516_WDOG_CTRL_SOFT_TRIG,
devpriv->i_IobaseAddon + APCI1516_WDOG_CTRL_REG);
break;
default:
printk("\nSpecified functionality does not exist\n");