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Update the list of controller capabilities, and document the one I added 

(WDC_CAPABILITY_NOIRQ).
This commit is contained in:
bjh21 2002-08-14 12:30:22 +00:00
parent 2eded71179
commit 96d74ccf91
1 changed files with 10 additions and 1 deletions
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11
share/man/man9/wdc.9
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@ -1,4 +1,4 @@
.\" $NetBSD: wdc.9,v 1.9 2002/02/13 08:18:57 ross Exp $
.\" $NetBSD: wdc.9,v 1.10 2002/08/14 12:30:22 bjh21 Exp $
.\"
.\" Copyright (c) 1998 Manuel Bouyer.
.\"
@ -81,6 +81,11 @@ struct wdc_softc { /* Per controller state */
#define WDC_CAPABILITY_ATA_NOSTREAM 0x0040
#define WDC_CAPABILITY_ATAPI_NOSTREAM 0x0080
#define WDC_CAPABILITY_NO_EXTRA_RESETS 0x0100
#define WDC_CAPABILITY_PREATA 0x0200
#define WDC_CAPABILITY_IRQACK 0x0400
#define WDC_CAPABILITY_SINGLE_DRIVE 0x0800
#define WDC_CAPABILITY_NOIRQ 0x1000
#define WDC_CAPABILITY_SELECT 0x2000
u_int8_t pio_mode;
u_int8_t dma_mode;
int nchannels;
@ -276,6 +281,10 @@ avoid the controller reset at the end of the disks probe.
This reset is needed for some controllers, but causes problems with some
others.
.Pp
.Va WDC_CAPABILITY_NOIRQ
tells the driver that this controller doesn't have its interrupt lines
wired up usefully, so it should always use polled transfers.
.Pp
The bus front-end needs to fill in the following
elements of
.Va channel_softc :