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Editing: windrv_stub.c

/*-
 * SPDX-License-Identifier: BSD-4-Clause
 *
 * Copyright (c) 2005
 *      Bill Paul <wpaul@windriver.com>.  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. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Bill Paul.
 * 4. Neither the name of the author nor the names of any co-contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
 * 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.
 */

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

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

#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/bus.h>

#define NDIS_REGVALS

struct ndis_cfg {
	char			*nc_cfgkey;
	char			*nc_cfgdesc;
	char			nc_val[256];
	int			nc_idx;
};

typedef struct ndis_cfg ndis_cfg;

#include "windrv.h"

struct ndis_pci_type {
        uint16_t                ndis_vid;
        uint16_t                ndis_did;
        uint32_t                ndis_subsys;
        char                    *ndis_name;
};

struct ndis_pccard_type {
        const char              *ndis_vid;
        const char              *ndis_did;
        char                    *ndis_name;
};

struct ndis_usb_type {
	uint16_t		ndis_vid;
	uint16_t		ndis_did;
	char			*ndis_name;
};

#ifdef NDIS_PCI_DEV_TABLE
static struct ndis_pci_type ndis_devs_pci[] = {
        NDIS_PCI_DEV_TABLE
        { 0, 0, 0, NULL }
};
#endif

#ifdef NDIS_PCMCIA_DEV_TABLE
static struct ndis_pccard_type ndis_devs_pccard[] = {
        NDIS_PCMCIA_DEV_TABLE
        { NULL, NULL, NULL }
};
#endif

#ifdef NDIS_USB_DEV_TABLE
static struct ndis_usb_type ndis_devs_usb[] = {
	NDIS_USB_DEV_TABLE
	{ 0, 0, NULL }
};
#endif

enum interface_type {
	InterfaceTypeUndefined = -1,
	Internal,
	Isa,
	Eisa,
	MicroChannel,
	TurboChannel,
	PCIBus,
	VMEBus,
	NuBus,
	PCMCIABus,
	CBus,
	MPIBus,
	MPSABus,
	ProcessorInternal,
	InternalPowerBus,
	PNPISABus,
	PNPBus,
	MaximumInterfaceType
};

typedef enum interface_type interface_type;

/*
 * XXX
 * Ordinarily, device_probe_desc is defined in device_if.h, which
 * is created from device_if.m. The problem is, the latter file
 * is only available if you have the kernel source code installed,
 * and not all users choose to install it. I'd like to let people
 * load Windows driver modules with the minimal amount of hassle
 * and dependencies. <sys/bus.h> wants both device_if.h and bus_if.h
 * to be defined, but it turns out the only thing we really need
 * to get this module compiled is device_probe_desc, so we define
 * that here, and let the build script create empty copies of
 * device_if.h and bus_if.h to make the compiler happy.
 */

extern struct kobjop_desc device_probe_desc;
typedef int device_probe_t(device_t dev);

extern int windrv_load(module_t, vm_offset_t, size_t,
	interface_type, void *, void *);
extern int windrv_unload(module_t, vm_offset_t, size_t);

#ifndef DRV_DATA_START
#define DRV_DATA_START UNDEF_START
#endif

#ifndef DRV_DATA_END
#define DRV_DATA_END UNDEF_END
#endif

#ifndef DRV_NAME
#define DRV_NAME UNDEF_NAME
#endif

extern uint8_t DRV_DATA_START;
extern uint8_t DRV_DATA_END;

/*
 * The following is stub code that makes it look as though we want
 * to be a child device of all the buses that our supported devices
 * might want to attach to. Our probe routine always fails. The
 * reason we need this code is so that loading an ELF-ified Windows
 * driver module will trigger a bus reprobe.
 */

#define MODULE_DECL(x)				\
	MODULE_DEPEND(x, ndisapi, 1, 1, 1);	\
	MODULE_DEPEND(x, ndis, 1, 1, 1)

MODULE_DECL(DRV_NAME);

static int windrv_probe(device_t);
static int windrv_modevent(module_t, int, void *);
static int windrv_loaded = 0;

static device_method_t windrv_methods[] = {
	/* Device interface */
	DEVMETHOD(device_probe,         windrv_probe),

{ 0, 0 }
};

static driver_t windrv_driver = {
	"windrv_stub",
	windrv_methods,
	0
};

static devclass_t windrv_devclass;

#define DRIVER_DECL(x)					\
	DRIVER_MODULE(x, pci, windrv_driver,		\
	    windrv_devclass, windrv_modevent, NULL);	\
	DRIVER_MODULE(x, cardbus, windrv_driver,	\
	    windrv_devclass, windrv_modevent, NULL);	\
	DRIVER_MODULE(x, pccard, windrv_driver,		\
	    windrv_devclass, windrv_modevent, NULL);	\
	DRIVER_MODULE(x, uhub, windrv_driver,		\
	    windrv_devclass, windrv_modevent, NULL);	\
	MODULE_VERSION(x, 1)

DRIVER_DECL(DRV_NAME);

static int
windrv_probe(dev)
	device_t		dev;
{
	return (ENXIO);
}

static int
windrv_modevent(mod, cmd, arg)
	module_t		mod;
	int			cmd;
	void			*arg;
{
	int			drv_data_len;
	int			error = 0;
	vm_offset_t		drv_data_start;
	vm_offset_t		drv_data_end;

drv_data_start = (vm_offset_t)&DRV_DATA_START;
	drv_data_end = (vm_offset_t)&DRV_DATA_END;

drv_data_len = drv_data_end - drv_data_start;
	switch (cmd) {
	case MOD_LOAD:
		windrv_loaded++;
		if (windrv_loaded > 1)
			break;
#ifdef NDIS_PCI_DEV_TABLE
		windrv_load(mod, drv_data_start, drv_data_len, PCIBus,
		    ndis_devs_pci, &ndis_regvals);
#endif
#ifdef NDIS_PCMCIA_DEV_TABLE
		windrv_load(mod, drv_data_start, drv_data_len, PCMCIABus,
		    ndis_devs_pccard, &ndis_regvals);
#endif
#ifdef NDIS_USB_DEV_TABLE
		windrv_load(mod, drv_data_start, drv_data_len, PNPBus,
		   ndis_devs_usb, &ndis_regvals);
#endif
		break;
	case MOD_UNLOAD:
		windrv_loaded--;
		if (windrv_loaded > 0)
			break;
#ifdef NDIS_PCI_DEV_TABLE
		windrv_unload(mod, drv_data_start, drv_data_len);
#endif
#ifdef NDIS_PCMCIA_DEV_TABLE
		windrv_unload(mod, drv_data_start, drv_data_len);
#endif
#ifdef NDIS_USB_DEV_TABLE
		windrv_unload(mod, drv_data_start, drv_data_len);
#endif
		break;
	case MOD_SHUTDOWN:
		break;
	default:
		error = EINVAL;
		break;
	}

return (error);
}

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Editing: windrv_stub.c

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