.\" $NetBSD: igpio.4,v 1.4 2023/02/27 15:41:41 msaitoh Exp $
.\"
.\" Copyright (c) 2022 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Emmanuel Dreyfus.
.\"
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.\" modification, are permitted provided that the following conditions
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.Dd February 27, 2023
.Dt IGPIO 4
.Os
.Sh NAME
.Nm igpio
.Nd Intel GPIO Controller
.Sh SYNOPSIS
.Cd "igpio* at acpi?"
.Cd "gpio* at gpiobus?"
.Sh DESCRIPTION
.Nm
provides a
.Xr gpio 4
interface for the following Intel chipsets:
.Bl -tag -width autoselect -compact
.It Alder Lake-N
.It Alder Lake-P
.It Alder Lake-S
.It Cannon Lake-H
.It Cannon Lake-LP
.It Cedarfork
.It Coffee Lake-S
.It Denverton
.It Emmitsburg
.It Gemini Lake
.It Ice Lake-LP
.It Ice Lake-N
.It Jasper Lake
.It Lakefield
.It Lewisburg
.It Raptor Lake-S
.It Sunrisepoint-H
.It Sunrisepoint-LP
.It Tiger Lake-H
.It Tiger Lake-LP
.El
Support for Baytrail, Broxton, Cherryview and Lynxpoint are not enabled yet.
.Pp
The driver supports
.Dv GPIO_PIN_INPUT ,
.Dv GPIO_PIN_OUTPUT ,
.Dv GPIO_PIN_INOUT ,
.Dv GPIO_PIN_ININ ,
.Dv GPIO_PIN_PULLUP ,
.Dv GPIO_PIN_PULLDOWN ,
and interrupt capabilies
.Dv GPIO_INTR_POS_EDGE ,
.Dv GPIO_INTR_NEG_EDGE ,
.Dv GPIO_INTR_DOUBLE_EDGE ,
.Dv GPIO_INTR_HIGH_LEVEL ,
.Dv GPIO_INTR_LOW_LEVEL .
.Sh SEE ALSO
.Xr gpio 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Nx 10.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver and man page was written by
.An Emmanuel Dreyfus
.Aq Mt manu@NetBSD.org .