Date: Wed, 15 Jan 2003 20:20:33 +0000 From: Josef Karthauser <joe@FreeBSD.org> To: Maxime Henrion <mux@freebsd.org> Cc: current@freebsd.org Subject: Re: Bus DMA for USB - compilation problems. Message-ID: <20030115202033.GA13368@genius.tao.org.uk> In-Reply-To: <20030115200519.GH16775@elvis.mu.org> References: <20030115195607.GA13076@genius.tao.org.uk> <20030115200519.GH16775@elvis.mu.org>
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On Wed, Jan 15, 2003 at 12:05:20PM -0800, Maxime Henrion wrote:
> Josef Karthauser wrote:
> > I've partially ported the NetBSD busdma code for USB to FreeBSD, but
> > it doesn't compile, probably for a trivial reason.
> >=20
> > Anyone fancy helping me out?
>=20
> I didn't look at the patches yet, but could you give me the compilation
> error you are getting ?
>=20
cc -c -O -pipe -march=3Dpentium3 -Wall -Wredundant-decls -Wnested-externs
-Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Winline
-Wcast-qual -fformat-extensions -ansi -g -nostdinc -I- -I.
-I/usr/src/sys -I/usr/src/sys/dev -I/usr/src/sys/contrib/dev/acpica
-I/usr/src/sys/contrib/ipfilter -D_KERNEL -include opt_global.h
-fno-common -mno-align-long-strings -mpreferred-stack-boundary=3D2
-ffreestanding -Werror /usr/src/sys/dev/usb/uhci.c
/usr/src/sys/dev/usb/uhci.c: In function `uhci_init':
/usr/src/sys/dev/usb/uhci.c:425: dereferencing pointer to incomplete type
/usr/src/sys/dev/usb/uhci.c: In function `uhci_power':
/usr/src/sys/dev/usb/uhci.c:714: dereferencing pointer to incomplete type
/usr/src/sys/dev/usb/uhci.c: In function `uhci_alloc_std':
It's failing at lines like:
UWRITE4(sc, UHCI_FLBASEADDR, DMAADDR(&sc->sc_dma, 0)); /* set frame=
list */
The problematic is DMAADDR, and it's because the sc->sc_dma, which is
defined as usb_dma_t. This is defined in usb_port.h, and it uses
usb_dma_block which is defined in usb_mem.h. I think that it's the
usb_dma_block that is coming up as incomplete, but I'm not sure.
Joe
--=20
Josef Karthauser (joe@tao.org.uk) http://www.josef-k.net/
FreeBSD (cvs meister, admin and hacker) http://www.uk.FreeBSD.org/
Physics Particle Theory (student) http://www.pact.cpes.sussex.ac.uk/
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D An eclectic mix of fact an=
d theory. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
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