diff options
Diffstat (limited to 'c/src/lib/libbsp/i386/pc386/include')
| -rw-r--r-- | c/src/lib/libbsp/i386/pc386/include/bsp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/i386/pc386/include/bsp.h b/c/src/lib/libbsp/i386/pc386/include/bsp.h index c152152fb7..7431059314 100644 --- a/c/src/lib/libbsp/i386/pc386/include/bsp.h +++ b/c/src/lib/libbsp/i386/pc386/include/bsp.h @@ -122,6 +122,14 @@ extern int rtems_dec21140_driver_attach(struct rtems_bsdnet_ifconfig *, int); #define TIMER_MSB 0x20 /* r/w counter MSB */ #define TIMER_16BIT 0x30 /* r/w counter 16 bits, LSB first */ #define TIMER_BCD 0x01 /* count in BCD */ +#define TIMER_RD_BACK 0xc0 /* Read Back Command */ + /* READ BACK command layout in the Command Register */ +#define RB_NOT_COUNT 0x40 /* Don't select counter latch */ +#define RB_NOT_STATUS 0x20 /* Don't select status latch */ +#define RB_COUNT_0 0x02 /* Counter 0 latch */ +#define RB_COUNT_1 0x04 /* Counter 1 latch */ +#define RB_COUNT_2 0x08 /* Counter 2 latch */ +#define RB_OUTPUT 0x80 /* Output of the counter is 1 */ #define TIMER_TICK 1193182 /* The internal tick rate in ticks per second */ |