diff options
Diffstat (limited to 'sys/dev/isa/isavar.h')
| -rw-r--r-- | sys/dev/isa/isavar.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/sys/dev/isa/isavar.h b/sys/dev/isa/isavar.h index e6a500bde88..15433366f20 100644 --- a/sys/dev/isa/isavar.h +++ b/sys/dev/isa/isavar.h @@ -1,5 +1,5 @@ -/* $OpenBSD: isavar.h,v 1.9 1996/04/27 18:39:07 niklas Exp $ */ -/* $NetBSD: isavar.h,v 1.21 1996/04/11 22:20:50 cgd Exp $ */ +/* $OpenBSD: isavar.h,v 1.10 1996/05/10 12:37:45 deraadt Exp $ */ +/* $NetBSD: isavar.h,v 1.22 1996/05/05 01:14:14 thorpej Exp $ */ /* * Copyright (c) 1995 Chris G. Demetriou @@ -88,6 +88,8 @@ struct isa_attach_args { int ia_maddr; /* physical i/o mem addr */ u_int ia_msize; /* size of i/o memory */ void *ia_aux; /* driver specific */ + + bus_io_handle_t ia_delayioh; /* i/o handle for `delay port' */ }; #define IOBASEUNK -1 /* i/o address is unknown */ @@ -114,6 +116,14 @@ struct isa_softc { bus_chipset_tag_t sc_bc; isa_chipset_tag_t sc_ic; + + /* + * This i/o handle is used to map port 0x84, which is + * read to provide a 2.5us delay. This i/o handle + * is mapped in isaattach(), and exported to drivers + * via isa_attach_args. + */ + bus_io_handle_t sc_delayioh; }; #define cf_iobase cf_loc[0] |