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Major cleanup and many bugs fixed; based in part on Brad Huntting's version

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for BSD/386.  More to be done when the low-level interrupt system is replaced.
This commit is contained in:
mycroft 1994-03-08 08:12:56 +00:00
parent 0cea66c536
commit 49051114a6
6 changed files with 1632 additions and 1341 deletions
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982
sys/arch/i386/isa/com.c
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9
sys/arch/i386/isa/comreg.h
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@ -31,12 +31,13 @@
* SUCH DAMAGE.
*
* from: @(#)comreg.h 7.2 (Berkeley) 5/9/91
* $Id: comreg.h,v 1.2 1993/05/22 08:01:09 cgd Exp $
* $Id: comreg.h,v 1.3 1994/03/08 08:12:59 mycroft Exp $
*/
#include <i386/isa/ic/ns16550.h>
/* 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) */
#define COMBRD(x) (1843200 / (16*(x)))
#define COM_FREQ 1843200 /* 16-bit baud rate divisor */
#define COM_TOLERANCE 30 /* baud rate tolerance, in 0.1% units */
/* interrupt enable register */
#define IER_ERXRDY 0x1
@ -106,6 +107,8 @@
#define MSR_DDSR 0x02
#define MSR_DCTS 0x01
#define COM_NPORTS 8
/*
* WARNING: Serial console is assumed to be at COM1 address
* and CONUNIT must be 0.

982
sys/dev/ic/com.c
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9
sys/dev/ic/comreg.h
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@ -31,12 +31,13 @@
* SUCH DAMAGE.
*
* from: @(#)comreg.h 7.2 (Berkeley) 5/9/91
* $Id: comreg.h,v 1.2 1993/05/22 08:01:09 cgd Exp $
* $Id: comreg.h,v 1.3 1994/03/08 08:12:59 mycroft Exp $
*/
#include <i386/isa/ic/ns16550.h>
/* 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) */
#define COMBRD(x) (1843200 / (16*(x)))
#define COM_FREQ 1843200 /* 16-bit baud rate divisor */
#define COM_TOLERANCE 30 /* baud rate tolerance, in 0.1% units */
/* interrupt enable register */
#define IER_ERXRDY 0x1
@ -106,6 +107,8 @@
#define MSR_DDSR 0x02
#define MSR_DCTS 0x01
#define COM_NPORTS 8
/*
* WARNING: Serial console is assumed to be at COM1 address
* and CONUNIT must be 0.

982
sys/dev/isa/com.c
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File diff suppressed because it is too large Load Diff

9
sys/dev/isa/comreg.h
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@ -31,12 +31,13 @@
* SUCH DAMAGE.
*
* from: @(#)comreg.h 7.2 (Berkeley) 5/9/91
* $Id: comreg.h,v 1.2 1993/05/22 08:01:09 cgd Exp $
* $Id: comreg.h,v 1.3 1994/03/08 08:12:59 mycroft Exp $
*/
#include <i386/isa/ic/ns16550.h>
/* 16 bit baud rate divisor (lower byte in dca_data, upper in dca_ier) */
#define COMBRD(x) (1843200 / (16*(x)))
#define COM_FREQ 1843200 /* 16-bit baud rate divisor */
#define COM_TOLERANCE 30 /* baud rate tolerance, in 0.1% units */
/* interrupt enable register */
#define IER_ERXRDY 0x1
@ -106,6 +107,8 @@
#define MSR_DDSR 0x02
#define MSR_DCTS 0x01
#define COM_NPORTS 8
/*
* WARNING: Serial console is assumed to be at COM1 address
* and CONUNIT must be 0.