Differential D17064 Diff 47762 sys/dev/virtio/mmio/virtio_mmio_acpi.c

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sys/dev/virtio/mmio/virtio_mmio_acpi.c

This file was copied from sys/dev/virtio/mmio/virtio_mmio.h.

	/*-			/*-
	* Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>			* Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
				* Copyright (c) 2014 The FreeBSD Foundation
	* All rights reserved.			* All rights reserved.
	*			*
	* This software was developed by SRI International and the University of			* This software was developed by SRI International and the University of
	* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)			* Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
	* ("CTSRD"), as part of the DARPA CRASH research programme.			* ("CTSRD"), as part of the DARPA CRASH research programme.
	*			*
				* Portions of this software were developed by Andrew Turner
				* under sponsorship from the FreeBSD Foundation.
				*
	* Redistribution and use in source and binary forms, with or without			* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions			* modification, are permitted provided that the following conditions
	* are met:			* are met:
	* 1. Redistributions of source code must retain the above copyright			* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.			* notice, this list of conditions and the following disclaimer.
	* 2. Redistributions in binary form must reproduce the above copyright			* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in the			* notice, this list of conditions and the following disclaimer in the
	* documentation and/or other materials provided with the distribution.			* documentation and/or other materials provided with the distribution.
	*			*
	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY			* 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			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.			* SUCH DAMAGE.
	*
	* $FreeBSD$
	*/			*/

	#ifndef _VIRTIO_MMIO_H			/*
	#define _VIRTIO_MMIO_H			* VirtIO MMIO interface.
				* This driver is heavily based on VirtIO PCI interface driver.
				*/

	#define VIRTIO_MMIO_MAGIC_VALUE 0x000			#include "opt_acpi.h"
	#define VIRTIO_MMIO_VERSION 0x004
	#define VIRTIO_MMIO_DEVICE_ID 0x008
	#define VIRTIO_MMIO_VENDOR_ID 0x00c
	#define VIRTIO_MMIO_HOST_FEATURES 0x010
	#define VIRTIO_MMIO_HOST_FEATURES_SEL 0x014
	#define VIRTIO_MMIO_GUEST_FEATURES 0x020
	#define VIRTIO_MMIO_GUEST_FEATURES_SEL 0x024
	#define VIRTIO_MMIO_GUEST_PAGE_SIZE 0x028
	#define VIRTIO_MMIO_QUEUE_SEL 0x030
	#define VIRTIO_MMIO_QUEUE_NUM_MAX 0x034
	#define VIRTIO_MMIO_QUEUE_NUM 0x038
	#define VIRTIO_MMIO_QUEUE_ALIGN 0x03c
	#define VIRTIO_MMIO_QUEUE_PFN 0x040
	#define VIRTIO_MMIO_QUEUE_NOTIFY 0x050
	#define VIRTIO_MMIO_INTERRUPT_STATUS 0x060
	#define VIRTIO_MMIO_INTERRUPT_ACK 0x064
	#define VIRTIO_MMIO_STATUS 0x070
	#define VIRTIO_MMIO_CONFIG 0x100
	#define VIRTIO_MMIO_INT_VRING (1 << 0)
	#define VIRTIO_MMIO_INT_CONFIG (1 << 1)
	#define VIRTIO_MMIO_VRING_ALIGN 4096

	#endif /* _VIRTIO_MMIO_H */			#include <sys/cdefs.h>
				__FBSDID("$FreeBSD$");

				#include <sys/param.h>
				#include <sys/systm.h>
				#include <sys/bus.h>
				#include <sys/kernel.h>
				#include <sys/module.h>

				#include <contrib/dev/acpica/include/acpi.h>
				#include <dev/acpica/acpivar.h>

				#include <dev/virtio/mmio/virtio_mmio.h>

				static int vtmmio_acpi_probe(device_t);

				static device_method_t vtmmio_acpi_methods[] = {
				/* Device interface. */
				DEVMETHOD(device_probe, vtmmio_acpi_probe),

				DEVMETHOD_END
				};

				DEFINE_CLASS_1(virtio_mmio, vtmmio_acpi_driver, vtmmio_acpi_methods,
				sizeof(struct vtmmio_softc), vtmmio_driver);

				static devclass_t vtmmio_acpi_devclass;

				DRIVER_MODULE(virtio_mmio, acpi, vtmmio_acpi_driver, vtmmio_acpi_devclass, 0,0);
				MODULE_DEPEND(virtio_mmio, acpi, 1, 1, 1);

				static int
				vtmmio_acpi_probe(device_t dev)
				{
				ACPI_HANDLE h;

				if ((h = acpi_get_handle(dev)) == NULL)
				return (ENXIO);

				if (!acpi_MatchHid(h, "LNRO0005"))
				return (ENXIO);

				device_set_desc(dev, "VirtIO MMIO adapter");
				return (BUS_PROBE_DEFAULT);
				}