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new floppy driver, merged from patchkit patch #153

This commit is contained in:
cgd 1993-06-18 06:19:16 +00:00
parent ea839ab1b5
commit 9f1a8dc335
2 changed files with 619 additions and 410 deletions
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1021
sys/arch/i386/isa/fd.c
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8
sys/arch/i386/isa/fdreg.h
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)fdreg.h 7.1 (Berkeley) 5/9/91
* $Id: fdreg.h,v 1.3 1993/05/22 08:01:11 cgd Exp $
* $Id: fdreg.h,v 1.4 1993/06/18 06:19:20 cgd Exp $
*/
/*
@ -43,11 +43,13 @@
/* registers */
#define fdout 2 /* Digital Output Register (W) */
#define FDO_FDSEL 0x01 /* floppy device select */
#define FDO_FDSEL 0x03 /* floppy device select */
#define FDO_FRST 0x04 /* floppy controller reset */
#define FDO_FDMAEN 0x08 /* enable floppy DMA and Interrupt */
#define FDO_MOEN0 0x10 /* motor enable drive 0 */
#define FDO_MOEN1 0x20 /* motor enable drive 1 */
#define FDO_MOEN2 0x30 /* motor enable drive 2 */
#define FDO_MOEN3 0x40 /* motor enable drive 3 */
#define fdsts 4 /* NEC 765 Main Status Register (R) */
#define fddata 5 /* NEC 765 Data Register (R/W) */
@ -60,5 +62,3 @@
#define fdin 7 /* Digital Input Register (R) */
#define FDI_DCHG 0x80 /* diskette has been changed */