63ba67b69c
when we create a PDO, the driver_object associated with it is that of the parent driver, not the driver we're trying to attach. For example, if we attach a PCI device, the PDO we pass to the NdisAddDevice() function should contain a pointer to fake_pci_driver, not to the NDIS driver itself. For PCI or PCMCIA devices this doesn't matter because the child never needs to talk to the parent bus driver, but for USB, the child needs to be able to send IRPs to the parent USB bus driver, and for that to work the parent USB bus driver has to be hung off the PDO. This involves modifying windrv_lookup() so that we can search for bus drivers by name, if necessary. Our fake bus drivers attach themselves as "PCI Bus," "PCCARD Bus" and "USB Bus," so we can search for them using those names. The individual attachment stubs now create and attach PDOs to the parent bus drivers instead of hanging them off the NDIS driver's object, and in if_ndis.c, we now search for the correct driver object depending on the bus type, and use that to find the correct PDO. With this fix, I can get my sample USB ethernet driver to deliver an IRP to my fake parent USB bus driver's dispatch routines. - Add stub modules for USB support: subr_usbd.c, usbd_var.h and if_ndis_usb.c. The subr_usbd.c module is hooked up the build but currently doesn't do very much. It provides the stub USB parent driver object and a dispatch routine for IRM_MJ_INTERNAL_DEVICE_CONTROL. The only exported function at the moment is USBD_GetUSBDIVersion(). The if_ndis_usb.c stub compiles, but is not hooked up to the build yet. I'm putting these here so I can keep them under source code control as I flesh them out.
157 lines
4.1 KiB
C
157 lines
4.1 KiB
C
/*-
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* Copyright (c) 2005
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* Bill Paul <wpaul@windriver.com>. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Bill Paul.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/unistd.h>
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#include <sys/types.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/module.h>
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#include <sys/conf.h>
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#include <sys/mbuf.h>
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#include <sys/bus.h>
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#include <sys/queue.h>
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#include <compat/ndis/pe_var.h>
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#include <compat/ndis/cfg_var.h>
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#include <compat/ndis/resource_var.h>
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#include <compat/ndis/ntoskrnl_var.h>
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#include <compat/ndis/ndis_var.h>
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#include <compat/ndis/hal_var.h>
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#include <compat/ndis/usbd_var.h>
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static driver_object usbd_driver;
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__stdcall static uint32_t usbd_iodispatch(device_object *, irp *);
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__stdcall static void USBD_GetUSBDIVersion(usbd_version_info *);
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__stdcall static void dummy(void);
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int
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usbd_libinit(void)
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{
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image_patch_table *patch;
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patch = usbd_functbl;
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while (patch->ipt_func != NULL) {
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windrv_wrap((funcptr)patch->ipt_func,
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(funcptr *)&patch->ipt_wrap);
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patch++;
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}
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/* Create a fake USB driver instance. */
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windrv_bus_attach(&usbd_driver, "USB Bus");
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/* Set up our dipatch routine. */
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usbd_driver.dro_dispatch[IRP_MJ_INTERNAL_DEVICE_CONTROL] =
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(driver_dispatch)usbd_iodispatch;
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return(0);
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}
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int
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usbd_libfini(void)
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{
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image_patch_table *patch;
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patch = usbd_functbl;
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while (patch->ipt_func != NULL) {
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windrv_unwrap(patch->ipt_wrap);
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patch++;
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}
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free(usbd_driver.dro_drivername.us_buf, M_DEVBUF);
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return(0);
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}
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__stdcall static uint32_t
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usbd_iodispatch(dobj, ip)
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device_object *dobj;
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irp *ip;
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{
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return(0);
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}
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__stdcall static void
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USBD_GetUSBDIVersion(ui)
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usbd_version_info *ui;
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{
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/* Pretend to be Windows XP. */
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ui->uvi_usbdi_vers = USBDI_VERSION;
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ui->uvi_supported_vers = USB_VER_2_0;
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return;
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}
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__stdcall static void
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dummy(void)
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{
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printf("USBD dummy called\n");
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return;
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}
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image_patch_table usbd_functbl[] = {
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IMPORT_FUNC(USBD_GetUSBDIVersion),
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#ifdef notyet
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IMPORT_FUNC_MAP(_USBD_ParseConfigurationDescriptorEx@28,
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USBD_ParseConfigurationDescriptorEx),
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IMPORT_FUNC_MAP(_USBD_CreateConfigurationRequestEx@8,
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USBD_CreateConfigurationRequestEx),
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#endif
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/*
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* This last entry is a catch-all for any function we haven't
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* implemented yet. The PE import list patching routine will
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* use it for any function that doesn't have an explicit match
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* in this table.
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*/
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{ NULL, (FUNC)dummy, NULL },
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/* End of list. */
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{ NULL, NULL, NULL }
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};
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