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[src/trunk]: src Add hpet(4).



details:   https://anonhg.NetBSD.org/src/rev/81765c6f6bac
branches:  trunk
changeset: 756872:81765c6f6bac
user:      jruoho <jruoho%NetBSD.org@localhost>
date:      Fri Aug 06 16:42:31 2010 +0000

description:
Add hpet(4).

diffstat:

 distrib/sets/lists/man/mi        |   5 ++-
 share/man/man4/man4.x86/Makefile |   4 +-
 share/man/man4/man4.x86/hpet.4   |  76 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 82 insertions(+), 3 deletions(-)

diffs (125 lines):

diff -r c42b8c218987 -r 81765c6f6bac distrib/sets/lists/man/mi
--- a/distrib/sets/lists/man/mi Fri Aug 06 16:33:17 2010 +0000
+++ b/distrib/sets/lists/man/mi Fri Aug 06 16:42:31 2010 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1231 2010/08/05 17:31:11 jruoho Exp $
+# $NetBSD: mi,v 1.1232 2010/08/06 16:42:31 jruoho Exp $
 #
 # Note: don't delete entries from here - mark them as "obsolete" instead.
 #
@@ -1734,6 +1734,7 @@
 ./usr/share/man/cat4/x68k/vs.0                 man-sys-catman          .cat
 ./usr/share/man/cat4/x86/amdpcib.0             man-sys-catman          .cat
 ./usr/share/man/cat4/x86/balloon.0             man-sys-catman          .cat
+./usr/share/man/cat4/x86/hpet.0                        man-sys-catman          .cat
 ./usr/share/man/cat4/xbox.0                    man-sys-catman          .cat
 ./usr/share/man/cat4/xge.0                     man-sys-catman          .cat
 ./usr/share/man/cat4/xi.0                      man-sys-catman          .cat
@@ -4330,6 +4331,7 @@
 ./usr/share/man/html4/x68k/vs.html             man-sys-htmlman         html
 ./usr/share/man/html4/x86/amdpcib.html         man-sys-htmlman         html
 ./usr/share/man/html4/x86/balloon.html         man-sys-htmlman         html
+./usr/share/man/html4/x86/hpet.html            man-sys-htmlman         html
 ./usr/share/man/html4/xbox.html                        man-sys-htmlman         html
 ./usr/share/man/html4/xge.html                 man-sys-htmlman         html
 ./usr/share/man/html4/xi.html                  man-sys-htmlman         html
@@ -6864,6 +6866,7 @@
 ./usr/share/man/man4/x68k/vs.4                 man-sys-man             .man
 ./usr/share/man/man4/x86/amdpcib.4             man-sys-man             .man
 ./usr/share/man/man4/x86/balloon.4             man-sys-man             .man
+./usr/share/man/man4/x86/hpet.4                        man-sys-man             .man
 ./usr/share/man/man4/xbox.4                    man-sys-man             .man
 ./usr/share/man/man4/xge.4                     man-sys-man             .man
 ./usr/share/man/man4/xi.4                      man-sys-man             .man
diff -r c42b8c218987 -r 81765c6f6bac share/man/man4/man4.x86/Makefile
--- a/share/man/man4/man4.x86/Makefile  Fri Aug 06 16:33:17 2010 +0000
+++ b/share/man/man4/man4.x86/Makefile  Fri Aug 06 16:42:31 2010 +0000
@@ -1,6 +1,6 @@
-#      $NetBSD: Makefile,v 1.2 2010/08/05 04:58:27 jruoho Exp $
+#      $NetBSD: Makefile,v 1.3 2010/08/06 16:42:31 jruoho Exp $
 
-MAN=   amdpcib.4 balloon.4
+MAN=   amdpcib.4 balloon.4 hpet.4
 
 MANSUBDIR=/x86
 
diff -r c42b8c218987 -r 81765c6f6bac share/man/man4/man4.x86/hpet.4
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/share/man/man4/man4.x86/hpet.4    Fri Aug 06 16:42:31 2010 +0000
@@ -0,0 +1,76 @@
+.\"    $NetBSD: hpet.4,v 1.1 2010/08/06 16:42:31 jruoho Exp $
+.\"
+.\" Copyright (c) 2010 Jukka Ruohonen <jruohonen%iki.fi@localhost>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Neither the name of the author nor the names of any
+.\"    contributors may be used to endorse or promote products derived
+.\"    from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd August 6, 2010
+.Dt HPET 4 x86
+.Os
+.Sh NAME
+.Nm hpet
+.Nd High Precision Event Timer
+.Sh SYNOPSIS
+.Cd "hpet* at acpi?"
+.Cd "hpet* at amdpcib?"
+.Cd "hpet* at ichlpcib?"
+.Sh DESCRIPTION
+The
+.Nm
+driver supports High Precision Event Timers
+.Pq Tn HPETs .
+The
+.Tn HPET
+architecture defines one main 64-bit counter and several
+additional timers with variable width.
+The minimum clock frequency of the main timecounter is 10 MHz,
+but much higher rates are common.
+The additional 32 or 64 -bit parts are typically accessible via
+.Tn MMIO
+that is set by the system
+.Tn BIOS
+through
+.Tn ACPI .
+.Pp
+As a
+.Tn HPET
+can provide higher interrupt rates than a
+.Tn RTC
+or
+.Xr attimer 4 ,
+multimedia is one typical application context.
+The interrupt logic is configurable through
+.Tn I/O
+.Tn APIC ,
+but a legacy mode is provided for older systems.
+.Sh SEE ALSO
+.Xr acpi 4 ,
+.Xr attimer 4 ,
+.Xr timecounter 9
+.Rs
+.%A Intel Corporation
+.%T IA-PC HPET (High Precision Event Timers) Specification
+.%N Revision 1.0a
+.%D October, 2004
+.%U http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+.Re



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