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| author | jhay <jhay@FreeBSD.org> | 2002-01-30 17:22:04 +0000 |
|---|---|---|
| committer | jhay <jhay@FreeBSD.org> | 2002-01-30 17:22:04 +0000 |
| commit | 2aa4b18cd1eaf39b83dacb13149fd9b9234ab9f0 (patch) | |
| tree | c1fb40b4db9ad5449f78e150fc82173e2a30dc9e /sys/dev/sio/sioreg.h | |
| parent | 192e988fe5f700937bd262b61b0a75a7e7b59825 (diff) | |
| download | FreeBSD-src-2aa4b18cd1eaf39b83dacb13149fd9b9234ab9f0.zip FreeBSD-src-2aa4b18cd1eaf39b83dacb13149fd9b9234ab9f0.tar.gz | |
Add support for different serial clock frequencies and not just the
standard one of 1.8432MHz. This will be used by the puc (PCI
"universal" communication card) device driver.
Reviewed by: bde
Diffstat (limited to 'sys/dev/sio/sioreg.h')
| -rw-r--r-- | sys/dev/sio/sioreg.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/dev/sio/sioreg.h b/sys/dev/sio/sioreg.h index 52d7658..a3fbc96 100644 --- a/sys/dev/sio/sioreg.h +++ b/sys/dev/sio/sioreg.h @@ -34,10 +34,12 @@ * $FreeBSD$ */ +/* Receiver clock frequency for "standard" pc serial ports. */ +#define DEFAULT_RCLK 1843200 +#ifdef PC98 /* 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) */ #define COMBRD(x) (1843200 / (16*(x))) -#ifdef PC98 #define COMBRD_RSA(x) (14745600 / (16*(x))) #endif |
