diff options
Diffstat (limited to 'drivers/staging/comedi/drivers/8253.h')
| -rw-r--r-- | drivers/staging/comedi/drivers/8253.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h index 3abedcd2527b..e3d737cf7302 100644 --- a/drivers/staging/comedi/drivers/8253.h +++ b/drivers/staging/comedi/drivers/8253.h @@ -21,6 +21,15 @@ #include "../comedi.h" +/* + * Common oscillator base values in nanoseconds + */ +#define I8254_OSC_BASE_10MHZ 100 +#define I8254_OSC_BASE_5MHZ 200 +#define I8254_OSC_BASE_4MHZ 250 +#define I8254_OSC_BASE_2MHZ 500 +#define I8254_OSC_BASE_1MHZ 1000 + #define i8253_cascade_ns_to_timer i8253_cascade_ns_to_timer_2div static inline void i8253_cascade_ns_to_timer_2div_old(int i8253_osc_base, |