add support for nvidia hdaudio controllers


(jmcneill)

@@ -1,4 +1,4 @@
-/* $NetBSD: hdaudio_pci.c,v 1.5 2010/02/24 22:38:08 dyoung Exp $ */
+/* $NetBSD: hdaudio_pci.c,v 1.6 2010/08/07 16:59:48 jmcneill Exp $ */
 
 /*
  * Copyright (c) 2009 Precedence Technologies Ltd <support@precedence.co.uk>
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.5 2010/02/24 22:38:08 dyoung Exp $");
+__KERNEL_RCSID(0, "$NetBSD: hdaudio_pci.c,v 1.6 2010/08/07 16:59:48 jmcneill Exp $");
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -49,6 +49,7 @@
 
 #include <dev/pci/hdaudio/hdaudioreg.h>
 #include <dev/pci/hdaudio/hdaudiovar.h>
+#include <dev/pci/hdaudio/hdaudio_pci.h>
 
 struct hdaudio_pci_softc {
 	struct hdaudio_softc	sc_hdaudio;	/* must be first */
@@ -152,6 +153,18 @@
 
 	if (!pmf_device_register(self, NULL, hdaudio_pci_resume))
 		aprint_error_dev(self, "couldn't establish power handler\n");
+
+	switch (PCI_VENDOR(pa->pa_id)) {
+	case PCI_VENDOR_NVIDIA:
+		/* enable snooping */
+		csr = pci_conf_read(sc->sc_pc, sc->sc_tag,
+		    HDAUDIO_NV_REG_SNOOP);
+		csr &= ~HDAUDIO_NV_SNOOP_MASK;
+		csr |= HDAUDIO_NV_SNOOP_ENABLE;
+		pci_conf_write(sc->sc_pc, sc->sc_tag,
+		    HDAUDIO_NV_REG_SNOOP, csr);
+		break;
+	}
 
 	/* Attach bus-independent HD audio layer */
 	hdaudio_attach(self, &sc->sc_hdaudio);

/* $NetBSD: hdaudio_pci.h,v 1.1 2010/08/07 16:59:48 jmcneill Exp $ */

/*
 * Copyright (c) 2010 Jared D. McNeill <jmcneill@invisible.ca>
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Precedence Technologies Ltd
 *
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#ifndef _HDAUDIO_PCI_H
#define _HDAUDIO_PCI_H

#define	HDAUDIO_NV_REG_SNOOP	0x4c
#define	  HDAUDIO_NV_SNOOP_MASK		0x00ff0000
#define	  HDAUDIO_NV_SNOOP_ENABLE	0x000f0000

#endif /* !_HDAUDIO_PCI_H */